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<li class="navelem"><a class="el" href="dir_cd6dde39990e390e8133ccee011656ea.html">quantiles</a></li><li class="navelem"><a class="el" href="dir_0c72de7c01a0490d64173f294d65fe37.html">include</a></li> </ul>
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<div class="title">quantiles_sketch.hpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * distributed with this work for additional information</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * &quot;License&quot;); you may not use this file except in compliance</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> * with the License. You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> * software distributed under the License is distributed on an</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> * &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> * KIND, either express or implied. See the License for the</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> * specific language governing permissions and limitations</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment"> * under the License.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; </div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#ifndef _QUANTILES_SKETCH_HPP_</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#define _QUANTILES_SKETCH_HPP_</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &lt;functional&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; </div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &quot;quantiles_sorted_view.hpp&quot;</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &quot;common_defs.hpp&quot;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="preprocessor">#include &quot;serde.hpp&quot;</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="preprocessor">#include &quot;optional.hpp&quot;</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacedatasketches.html">datasketches</a> {</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; </div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="namespacedatasketches_1_1quantiles__constants.html"> 35</a></span>&#160;<span class="keyword">namespace </span>quantiles_constants {</div>
<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="namespacedatasketches_1_1quantiles__constants.html#ac8602cb1bd28fc26ae74b484e81a9a52"> 37</a></span>&#160; <span class="keyword">const</span> uint16_t <a class="code" href="namespacedatasketches_1_1quantiles__constants.html#ac8602cb1bd28fc26ae74b484e81a9a52">DEFAULT_K</a> = 128;</div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="namespacedatasketches_1_1quantiles__constants.html#ab9f2b631adf46fe04a11814cd1018926"> 39</a></span>&#160; <span class="keyword">const</span> uint16_t <a class="code" href="namespacedatasketches_1_1quantiles__constants.html#ab9f2b631adf46fe04a11814cd1018926">MIN_K</a> = 2;</div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="namespacedatasketches_1_1quantiles__constants.html#a3bd28528c16e8911658faff9c98b305f"> 41</a></span>&#160; <span class="keyword">const</span> uint16_t <a class="code" href="namespacedatasketches_1_1quantiles__constants.html#a3bd28528c16e8911658faff9c98b305f">MAX_K</a> = 1 &lt;&lt; 15;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;}</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; </div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T,</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; <span class="keyword">typename</span> Comparator = std::less&lt;T&gt;, <span class="comment">// strict weak ordering function (see C++ named requirements: Compare)</span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="keyword">typename</span> Allocator = std::allocator&lt;T&gt;&gt;</div>
<div class="line"><a name="l00153"></a><span class="lineno"><a class="line" href="classdatasketches_1_1quantiles__sketch.html"> 153</a></span>&#160;<span class="keyword">class </span><a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a> {</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keyword">using</span> value_type = T;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keyword">using</span> allocator_type = Allocator;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keyword">using</span> comparator = Comparator;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="keyword">using</span> quantile_return_type = <span class="keyword">typename</span> <a class="code" href="classdatasketches_1_1quantiles__sorted__view.html#a5ab4905c4f3ebeb14de4e7a2f5d92832">quantiles_sorted_view&lt;T, Comparator, Allocator&gt;::quantile_return_type</a>;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="keyword">using</span> vector_double = <span class="keyword">typename</span> quantiles_sorted_view&lt;T, Comparator, Allocator&gt;::vector_double;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; </div>
<div class="line"><a name="l00167"></a><span class="lineno"><a class="line" href="classdatasketches_1_1quantiles__sketch.html#a19c140a63e6b0d34f4354c41d93e5e6c"> 167</a></span>&#160; <span class="keyword">explicit</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a19c140a63e6b0d34f4354c41d93e5e6c">quantiles_sketch</a>(uint16_t k = <a class="code" href="namespacedatasketches_1_1quantiles__constants.html#ac8602cb1bd28fc26ae74b484e81a9a52">quantiles_constants::DEFAULT_K</a>,</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; <span class="keyword">const</span> Comparator&amp; comparator = Comparator(), <span class="keyword">const</span> Allocator&amp; allocator = Allocator());</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; </div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>(<span class="keyword">const</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>&amp; other);</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; </div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>(<a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>&amp;&amp; other) noexcept;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; </div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; ~<a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>();</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; </div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; <a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>&amp; <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a1aeede739283c1ead07288c1022e5d1b">operator=</a>(<span class="keyword">const</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>&amp; other);</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; </div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; <a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>&amp; <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a1aeede739283c1ead07288c1022e5d1b">operator=</a>(<a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>&amp;&amp; other) noexcept;</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; </div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> From, <span class="keyword">typename</span> FC, <span class="keyword">typename</span> FA&gt;</div>
<div class="line"><a name="l00204"></a><span class="lineno"><a class="line" href="classdatasketches_1_1quantiles__sketch.html#aebff865d9a4828eb346de6be97135bdc"> 204</a></span>&#160; <span class="keyword">explicit</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#aebff865d9a4828eb346de6be97135bdc">quantiles_sketch</a>(<span class="keyword">const</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch&lt;From, FC, FA&gt;</a>&amp; other,</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; <span class="keyword">const</span> Comparator&amp; comparator = Comparator(), <span class="keyword">const</span> Allocator&amp; allocator = Allocator());</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; </div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> FwdT&gt;</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a5200c74c52ee0f76d0d34c1ca6aec65c">update</a>(FwdT&amp;&amp; item);</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; </div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> FwdSk&gt;</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a49bb19e78f36fb72b8496cd6cff71fec">merge</a>(FwdSk&amp;&amp; other);</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; </div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a5a2b7a58dc85678d08752945ff655362">is_empty</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; </div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; uint16_t <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a59f4c39b9f2e762e8e3445ef89e1d264">get_k</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; </div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; uint64_t <a class="code" href="classdatasketches_1_1quantiles__sketch.html#af857be9469a7565252626f27e1f9d74d">get_n</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; </div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; uint32_t <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a31fa76458d81a17dbebfcb828e531f14">get_num_retained</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; </div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#ae95a04b1d7dccb3d9b3f3c3d087aa8e6">is_estimation_mode</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; </div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; <span class="keyword">const</span> T&amp; <a class="code" href="classdatasketches_1_1quantiles__sketch.html#af2fa890815acf3a1418ea8eee466075c">get_min_item</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; </div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; <span class="keyword">const</span> T&amp; <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a687ed2123bdc7e67fbda0c081e3acf21">get_max_item</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; </div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; Comparator <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a076f89979daa6471a3868cb97ea99b40">get_comparator</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; </div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; allocator_type <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a9d85cf47c4ecd0580ec623c42006dd1b">get_allocator</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; </div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; quantile_return_type <a class="code" href="classdatasketches_1_1quantiles__sketch.html#ac02fcfb6e706148458a2ef89390223a9">get_quantile</a>(<span class="keywordtype">double</span> rank, <span class="keywordtype">bool</span> inclusive = <span class="keyword">true</span>) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; </div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160; <span class="keywordtype">double</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a849dfa06c183fd2fdfe4fe4a7e29d918">get_rank</a>(<span class="keyword">const</span> T&amp; item, <span class="keywordtype">bool</span> inclusive = <span class="keyword">true</span>) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; </div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; vector_double <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a44226b755e73883ea2c128876e35b1d1">get_PMF</a>(<span class="keyword">const</span> T* split_points, uint32_t size, <span class="keywordtype">bool</span> inclusive = <span class="keyword">true</span>) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; </div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160; vector_double <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a20a4d992209b2aa58614c998d143705c">get_CDF</a>(<span class="keyword">const</span> T* split_points, uint32_t size, <span class="keywordtype">bool</span> inclusive = <span class="keyword">true</span>) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160; </div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> SerDe = serde&lt;T&gt;, <span class="keyword">typename</span> TT = T, <span class="keyword">typename</span> std::enable_if&lt;std::is_arithmetic&lt;TT&gt;::value, <span class="keywordtype">int</span>&gt;::type = 0&gt;</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160; <span class="keywordtype">size_t</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#ad9a5259d93d148b5c2050d68e7788716">get_serialized_size_bytes</a>(<span class="keyword">const</span> SerDe&amp; sd = SerDe()) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160; </div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> SerDe = serde&lt;T&gt;, <span class="keyword">typename</span> TT = T, <span class="keyword">typename</span> std::enable_if&lt;!std::is_arithmetic&lt;TT&gt;::value, <span class="keywordtype">int</span>&gt;::type = 0&gt;</div>
<div class="line"><a name="l00374"></a><span class="lineno"><a class="line" href="classdatasketches_1_1quantiles__sketch.html#ad9a5259d93d148b5c2050d68e7788716"> 374</a></span>&#160; <span class="keywordtype">size_t</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#ad9a5259d93d148b5c2050d68e7788716">get_serialized_size_bytes</a>(<span class="keyword">const</span> SerDe&amp; sd = SerDe()) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160; </div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> SerDe = serde&lt;T&gt;&gt;</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a538940c100e4353b3671ad452d3d3056">serialize</a>(std::ostream&amp; os, <span class="keyword">const</span> SerDe&amp; sd = SerDe()) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160; </div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>&#160; <span class="comment">// This is a convenience alias for users</span></div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>&#160; <span class="comment">// The type returned by the following serialize method</span></div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>&#160; <span class="keyword">using</span> vector_bytes = std::vector&lt;uint8_t, typename std::allocator_traits&lt;Allocator&gt;::template rebind_alloc&lt;uint8_t&gt;&gt;;</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>&#160; </div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> SerDe = serde&lt;T&gt;&gt;</div>
<div class="line"><a name="l00398"></a><span class="lineno"><a class="line" href="classdatasketches_1_1quantiles__sketch.html#a1d0c269c23926e93b1c7a9c00e86af97"> 398</a></span>&#160; vector_bytes <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a1d0c269c23926e93b1c7a9c00e86af97">serialize</a>(<span class="keywordtype">unsigned</span> header_size_bytes = 0, <span class="keyword">const</span> SerDe&amp; sd = SerDe()) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160; </div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> SerDe = serde&lt;T&gt;&gt;</div>
<div class="line"><a name="l00409"></a><span class="lineno"><a class="line" href="classdatasketches_1_1quantiles__sketch.html#a7350b4a67bcf6081017e1c42eef920d4"> 409</a></span>&#160; <span class="keyword">static</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a7350b4a67bcf6081017e1c42eef920d4">deserialize</a>(std::istream&amp; is, <span class="keyword">const</span> SerDe&amp; sd = SerDe(),</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>&#160; <span class="keyword">const</span> Comparator&amp; comparator = Comparator(), <span class="keyword">const</span> Allocator&amp; allocator = Allocator());</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>&#160; </div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> SerDe = serde&lt;T&gt;&gt;</div>
<div class="line"><a name="l00422"></a><span class="lineno"><a class="line" href="classdatasketches_1_1quantiles__sketch.html#a84d709e8662d6467f0565bda59ee9f61"> 422</a></span>&#160; <span class="keyword">static</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a84d709e8662d6467f0565bda59ee9f61">deserialize</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* bytes, <span class="keywordtype">size_t</span> size, <span class="keyword">const</span> SerDe&amp; sd = SerDe(),</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>&#160; <span class="keyword">const</span> Comparator&amp; comparator = Comparator(), <span class="keyword">const</span> Allocator&amp; allocator = Allocator());</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>&#160; </div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>&#160; <span class="keywordtype">double</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a3efad6c7f1aa59649203cc9f70cf36c9">get_normalized_rank_error</a>(<span class="keywordtype">bool</span> is_pmf) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>&#160; </div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>&#160; <span class="keyword">static</span> <span class="keywordtype">double</span> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a3efad6c7f1aa59649203cc9f70cf36c9">get_normalized_rank_error</a>(uint16_t k, <span class="keywordtype">bool</span> is_pmf);</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>&#160; </div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>&#160; string&lt;Allocator&gt; <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a592a7af55659ff803b26a45552a68dda">to_string</a>(<span class="keywordtype">bool</span> print_levels = <span class="keyword">false</span>, <span class="keywordtype">bool</span> print_items = <span class="keyword">false</span>) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>&#160; </div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>&#160; <span class="keyword">class </span>const_iterator;</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>&#160; </div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>&#160; const_iterator <a class="code" href="classdatasketches_1_1quantiles__sketch.html#ac5337e7ce1f6a4ebcef233caf3e24c01">begin</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>&#160; </div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>&#160; const_iterator <a class="code" href="classdatasketches_1_1quantiles__sketch.html#af3d8f736304ab5d51319c00febfc0ad1">end</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>&#160; </div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>&#160; <a class="code" href="classdatasketches_1_1quantiles__sorted__view.html">quantiles_sorted_view&lt;T, Comparator, Allocator&gt;</a> <a class="code" href="classdatasketches_1_1quantiles__sketch.html#a0a9c9c240dd591017fd6a80e147b7c00">get_sorted_view</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>&#160; </div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>&#160; <span class="keyword">using</span> Level = std::vector&lt;T, Allocator&gt;;</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>&#160; <span class="keyword">using</span> VectorLevels = std::vector&lt;Level, typename std::allocator_traits&lt;Allocator&gt;::template rebind_alloc&lt;Level&gt;&gt;;</div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>&#160; </div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>&#160; <span class="comment">/* Serialized sketch layout:</span></div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>&#160;<span class="comment"> * Long || Start Byte Addr:</span></div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>&#160;<span class="comment"> * Addr:</span></div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>&#160;<span class="comment"> * || 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |</span></div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>&#160;<span class="comment"> * 0 || Preamble_Longs | SerVer | FamID | Flags |----- K ---------|---- unused -----|</span></div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>&#160;<span class="comment"> * || 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |</span></div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>&#160;<span class="comment"> * 1 ||---------------------------Items Seen Count (N)--------------------------------|</span></div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>&#160;<span class="comment"> * Long 3 is the start of data, beginning with serialized min and max item, followed by</span></div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>&#160;<span class="comment"> * the sketch data buffers.</span></div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>&#160; </div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> EMPTY_SIZE_BYTES = 8;</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> uint8_t SERIAL_VERSION_1 = 1;</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> uint8_t SERIAL_VERSION_2 = 2;</div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> uint8_t SERIAL_VERSION = 3;</div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> uint8_t FAMILY = 8;</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>&#160; </div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>&#160; <span class="keyword">enum</span> flags { RESERVED0, RESERVED1, IS_EMPTY, IS_COMPACT, IS_SORTED };</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>&#160; </div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> uint8_t PREAMBLE_LONGS_SHORT = 1; <span class="comment">// for empty</span></div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> uint8_t PREAMBLE_LONGS_FULL = 2;</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> DATA_START = 16;</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>&#160; </div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>&#160; Comparator comparator_;</div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>&#160; Allocator allocator_;</div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>&#160; <span class="keywordtype">bool</span> is_base_buffer_sorted_;</div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>&#160; uint16_t k_;</div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>&#160; uint64_t n_;</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>&#160; uint64_t bit_pattern_;</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>&#160; Level base_buffer_;</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>&#160; VectorLevels levels_;</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>&#160; optional&lt;T&gt; min_item_;</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>&#160; optional&lt;T&gt; max_item_;</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>&#160; <span class="keyword">mutable</span> <a class="code" href="classdatasketches_1_1quantiles__sorted__view.html">quantiles_sorted_view&lt;T, Comparator, Allocator&gt;</a>* sorted_view_;</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>&#160; </div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>&#160; <span class="keywordtype">void</span> setup_sorted_view() <span class="keyword">const</span>; <span class="comment">// modifies mutable state</span></div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>&#160; <span class="keywordtype">void</span> reset_sorted_view();</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>&#160; </div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>&#160; <span class="comment">// for deserialization</span></div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>&#160; <span class="keyword">class </span>items_deleter;</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>&#160; <a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>(uint16_t k, uint64_t n, uint64_t bit_pattern,</div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>&#160; Level&amp;&amp; base_buffer, VectorLevels&amp;&amp; levels,</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>&#160; optional&lt;T&gt;&amp;&amp; min_item, optional&lt;T&gt;&amp;&amp; max_item,</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>&#160; <span class="keywordtype">bool</span> is_sorted, <span class="keyword">const</span> Comparator&amp; comparator = Comparator(), <span class="keyword">const</span> Allocator&amp; allocator = Allocator());</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>&#160; </div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>&#160; <span class="keywordtype">void</span> grow_base_buffer();</div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>&#160; <span class="keywordtype">void</span> process_full_base_buffer();</div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>&#160; </div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>&#160; <span class="comment">// returns true if size adjusted, else false</span></div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>&#160; <span class="keywordtype">bool</span> grow_levels_if_needed();</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>&#160; </div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>&#160; <span class="comment">// buffers should be pre-sized to target capacity as appropriate</span></div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> FwdV&gt;</div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> in_place_propagate_carry(uint8_t starting_level, FwdV&amp;&amp; buf_size_k,</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>&#160; Level&amp; buf_size_2k, <span class="keywordtype">bool</span> apply_as_update,</div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>&#160; <a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>&amp; sketch);</div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> zip_buffer(Level&amp; buf_in, Level&amp; buf_out);</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> merge_two_size_k_buffers(Level&amp; arr_in_1, Level&amp; arr_in_2, Level&amp; arr_out, <span class="keyword">const</span> Comparator&amp; comparator);</div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>&#160; </div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> SerDe&gt;</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>&#160; <span class="keyword">static</span> Level deserialize_array(std::istream&amp; is, uint32_t num_items, uint32_t capcacity, <span class="keyword">const</span> SerDe&amp; <a class="code" href="structdatasketches_1_1serde.html">serde</a>, <span class="keyword">const</span> Allocator&amp; allocator);</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>&#160; </div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> SerDe&gt;</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>&#160; <span class="keyword">static</span> std::pair&lt;Level, size_t&gt; deserialize_array(<span class="keyword">const</span> <span class="keywordtype">void</span>* bytes, <span class="keywordtype">size_t</span> size, uint32_t num_items, uint32_t capcacity, <span class="keyword">const</span> SerDe&amp; <a class="code" href="structdatasketches_1_1serde.html">serde</a>, <span class="keyword">const</span> Allocator&amp; allocator);</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>&#160; </div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> check_k(uint16_t k);</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> check_serial_version(uint8_t serial_version);</div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> check_header_validity(uint8_t preamble_longs, uint8_t flags_byte, uint8_t serial_version);</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> check_family_id(uint8_t family_id);</div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>&#160; </div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>&#160; <span class="keyword">static</span> uint32_t compute_retained_items(uint16_t k, uint64_t n);</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>&#160; <span class="keyword">static</span> uint32_t compute_base_buffer_items(uint16_t k, uint64_t n);</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>&#160; <span class="keyword">static</span> uint64_t compute_bit_pattern(uint16_t k, uint64_t n);</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>&#160; <span class="keyword">static</span> uint32_t count_valid_levels(uint64_t bit_pattern);</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>&#160; <span class="keyword">static</span> uint8_t compute_levels_needed(uint16_t k, uint64_t n);</div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>&#160; </div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> FwdSk&gt;</div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> standard_merge(<a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>&amp; tgt, FwdSk&amp;&amp; src);</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>&#160; </div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> FwdSk&gt;</div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> downsampling_merge(<a class="code" href="classdatasketches_1_1quantiles__sketch.html">quantiles_sketch</a>&amp; tgt, FwdSk&amp;&amp; src);</div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>&#160; </div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> FwdV&gt;</div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> zip_buffer_with_stride(FwdV&amp;&amp; buf_in, Level&amp; buf_out, uint16_t stride);</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>&#160; </div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>&#160; <span class="keyword">static</span> uint8_t lowest_zero_bit_starting_at(uint64_t bits, uint8_t starting_bit);</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>&#160; </div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>&#160; template&lt;typename TT = T, typename std::enable_if&lt;std::is_floating_point&lt;TT&gt;::value, <span class="keywordtype">int</span>&gt;::type = 0&gt;</div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>&#160; <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> check_update_item(TT item) {</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>&#160; <span class="keywordflow">return</span> !std::isnan(item);</div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>&#160; }</div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>&#160; </div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>&#160; template&lt;typename TT = T, typename std::enable_if&lt;!std::is_floating_point&lt;TT&gt;::value, <span class="keywordtype">int</span>&gt;::type = 0&gt;</div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>&#160; <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> check_update_item(TT) {</div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>&#160; }</div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>&#160; </div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>&#160; <span class="comment">// for type converting constructor</span></div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> From, <span class="keyword">typename</span> FC, <span class="keyword">typename</span> FA&gt; <span class="keyword">friend</span> <span class="keyword">class </span>quantiles_sketch;</div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>&#160;};</div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>&#160; </div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>&#160; </div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> C, <span class="keyword">typename</span> A&gt;</div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>&#160;<span class="keyword">class </span>quantiles_sketch&lt;T, C, A&gt;::const_iterator {</div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>&#160; <span class="keyword">using</span> iterator_category = std::input_iterator_tag;</div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>&#160; <span class="keyword">using</span> value_type = std::pair&lt;const T&amp;, const uint64_t&gt;;</div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>&#160; <span class="keyword">using</span> difference_type = void;</div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>&#160; <span class="keyword">using</span> pointer = <span class="keyword">const</span> return_value_holder&lt;value_type&gt;;</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>&#160; <span class="keyword">using</span> reference = <span class="keyword">const</span> value_type;</div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>&#160; </div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>&#160; const_iterator&amp; operator++();</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>&#160; const_iterator&amp; operator++(<span class="keywordtype">int</span>);</div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>&#160; <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> const_iterator&amp; other) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>&#160; <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> const_iterator&amp; other) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span>&#160; reference operator*() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>&#160; pointer operator-&gt;() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>&#160; <span class="keyword">friend</span> <span class="keyword">class </span>quantiles_sketch&lt;T, C, A&gt;;</div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>&#160; <span class="keyword">using</span> Level = std::vector&lt;T, A&gt;;</div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>&#160; <span class="keyword">using</span> AllocLevel = <span class="keyword">typename</span> std::allocator_traits&lt;A&gt;::template rebind_alloc&lt;Level&gt;;</div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>&#160; Level base_buffer_;</div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>&#160; std::vector&lt;Level, AllocLevel&gt; levels_;</div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>&#160; <span class="keywordtype">int</span> level_;</div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>&#160; uint32_t index_;</div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>&#160; uint32_t bb_count_;</div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span>&#160; uint64_t bit_pattern_;</div>
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>&#160; uint64_t weight_;</div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>&#160; uint16_t k_;</div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>&#160; const_iterator(<span class="keyword">const</span> Level&amp; base_buffer, <span class="keyword">const</span> std::vector&lt;Level, AllocLevel&gt;&amp; levels, uint16_t k, uint64_t n, <span class="keywordtype">bool</span> is_end);</div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span>&#160;};</div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>&#160; </div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span>&#160;} <span class="comment">/* namespace datasketches */</span></div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>&#160; </div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>&#160;<span class="preprocessor">#include &quot;quantiles_sketch_impl.hpp&quot;</span></div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>&#160; </div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>&#160;<span class="preprocessor">#endif </span><span class="comment">// _QUANTILES_SKETCH_HPP_</span></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html">datasketches::quantiles_sketch</a></div><div class="ttdoc">This is a stochastic streaming sketch that enables near-real time analysis of the approximate distrib...</div><div class="ttdef"><b>Definition:</b> quantiles_sketch.hpp:153</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a076f89979daa6471a3868cb97ea99b40"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a076f89979daa6471a3868cb97ea99b40">datasketches::quantiles_sketch::get_comparator</a></div><div class="ttdeci">Comparator get_comparator() const</div><div class="ttdoc">Returns an instance of the comparator for this sketch.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:681</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a0a9c9c240dd591017fd6a80e147b7c00"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a0a9c9c240dd591017fd6a80e147b7c00">datasketches::quantiles_sketch::get_sorted_view</a></div><div class="ttdeci">quantiles_sorted_view&lt; T, Comparator, Allocator &gt; get_sorted_view() const</div><div class="ttdoc">Gets the sorted view of this sketch.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:723</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a19c140a63e6b0d34f4354c41d93e5e6c"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a19c140a63e6b0d34f4354c41d93e5e6c">datasketches::quantiles_sketch::quantiles_sketch</a></div><div class="ttdeci">quantiles_sketch(uint16_t k=quantiles_constants::DEFAULT_K, const Comparator &amp;comparator=Comparator(), const Allocator &amp;allocator=Allocator())</div><div class="ttdoc">Constructor.</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a1aeede739283c1ead07288c1022e5d1b"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a1aeede739283c1ead07288c1022e5d1b">datasketches::quantiles_sketch::operator=</a></div><div class="ttdeci">quantiles_sketch &amp; operator=(const quantiles_sketch &amp;other)</div><div class="ttdoc">Copy assignment.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:89</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a1d0c269c23926e93b1c7a9c00e86af97"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a1d0c269c23926e93b1c7a9c00e86af97">datasketches::quantiles_sketch::serialize</a></div><div class="ttdeci">vector_bytes serialize(unsigned header_size_bytes=0, const SerDe &amp;sd=SerDe()) const</div><div class="ttdoc">This method serializes the sketch as a vector of bytes.</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a20a4d992209b2aa58614c998d143705c"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a20a4d992209b2aa58614c998d143705c">datasketches::quantiles_sketch::get_CDF</a></div><div class="ttdeci">vector_double get_CDF(const T *split_points, uint32_t size, bool inclusive=true) const</div><div class="ttdoc">Returns an approximation to the Cumulative Distribution Function (CDF), which is the cumulative analo...</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:769</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a31fa76458d81a17dbebfcb828e531f14"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a31fa76458d81a17dbebfcb828e531f14">datasketches::quantiles_sketch::get_num_retained</a></div><div class="ttdeci">uint32_t get_num_retained() const</div><div class="ttdoc">Returns the number of retained items (samples) in the sketch.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:664</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a3efad6c7f1aa59649203cc9f70cf36c9"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a3efad6c7f1aa59649203cc9f70cf36c9">datasketches::quantiles_sketch::get_normalized_rank_error</a></div><div class="ttdeci">double get_normalized_rank_error(bool is_pmf) const</div><div class="ttdoc">Gets the normalized rank error for this sketch.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:711</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a44226b755e73883ea2c128876e35b1d1"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a44226b755e73883ea2c128876e35b1d1">datasketches::quantiles_sketch::get_PMF</a></div><div class="ttdeci">vector_double get_PMF(const T *split_points, uint32_t size, bool inclusive=true) const</div><div class="ttdoc">Returns an approximation to the Probability Mass Function (PMF) of the input stream given a set of sp...</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:762</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a49bb19e78f36fb72b8496cd6cff71fec"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a49bb19e78f36fb72b8496cd6cff71fec">datasketches::quantiles_sketch::merge</a></div><div class="ttdeci">void merge(FwdSk &amp;&amp;other)</div><div class="ttdoc">Merges another sketch into this one.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:235</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a5200c74c52ee0f76d0d34c1ca6aec65c"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a5200c74c52ee0f76d0d34c1ca6aec65c">datasketches::quantiles_sketch::update</a></div><div class="ttdeci">void update(FwdT &amp;&amp;item)</div><div class="ttdoc">Updates this sketch with the given data item.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:212</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a538940c100e4353b3671ad452d3d3056"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a538940c100e4353b3671ad452d3d3056">datasketches::quantiles_sketch::serialize</a></div><div class="ttdeci">void serialize(std::ostream &amp;os, const SerDe &amp;sd=SerDe()) const</div><div class="ttdoc">This method serializes the sketch into a given stream in a binary form.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:277</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a592a7af55659ff803b26a45552a68dda"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a592a7af55659ff803b26a45552a68dda">datasketches::quantiles_sketch::to_string</a></div><div class="ttdeci">string&lt; Allocator &gt; to_string(bool print_levels=false, bool print_items=false) const</div><div class="ttdoc">Prints a summary of the sketch.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:595</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a59f4c39b9f2e762e8e3445ef89e1d264"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a59f4c39b9f2e762e8e3445ef89e1d264">datasketches::quantiles_sketch::get_k</a></div><div class="ttdeci">uint16_t get_k() const</div><div class="ttdoc">Returns configured parameter k.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:644</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a5a2b7a58dc85678d08752945ff655362"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a5a2b7a58dc85678d08752945ff655362">datasketches::quantiles_sketch::is_empty</a></div><div class="ttdeci">bool is_empty() const</div><div class="ttdoc">Returns true if this sketch is empty.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:654</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a687ed2123bdc7e67fbda0c081e3acf21"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a687ed2123bdc7e67fbda0c081e3acf21">datasketches::quantiles_sketch::get_max_item</a></div><div class="ttdeci">const T &amp; get_max_item() const</div><div class="ttdoc">Returns the max item of the stream.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:675</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a7350b4a67bcf6081017e1c42eef920d4"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a7350b4a67bcf6081017e1c42eef920d4">datasketches::quantiles_sketch::deserialize</a></div><div class="ttdeci">static quantiles_sketch deserialize(std::istream &amp;is, const SerDe &amp;sd=SerDe(), const Comparator &amp;comparator=Comparator(), const Allocator &amp;allocator=Allocator())</div><div class="ttdoc">This method deserializes a sketch from a given stream.</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a849dfa06c183fd2fdfe4fe4a7e29d918"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a849dfa06c183fd2fdfe4fe4a7e29d918">datasketches::quantiles_sketch::get_rank</a></div><div class="ttdeci">double get_rank(const T &amp;item, bool inclusive=true) const</div><div class="ttdoc">Returns an approximation to the normalized rank of the given item from 0 to 1, inclusive.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:755</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a84d709e8662d6467f0565bda59ee9f61"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a84d709e8662d6467f0565bda59ee9f61">datasketches::quantiles_sketch::deserialize</a></div><div class="ttdeci">static quantiles_sketch deserialize(const void *bytes, size_t size, const SerDe &amp;sd=SerDe(), const Comparator &amp;comparator=Comparator(), const Allocator &amp;allocator=Allocator())</div><div class="ttdoc">This method deserializes a sketch from a given array of bytes.</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_a9d85cf47c4ecd0580ec623c42006dd1b"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#a9d85cf47c4ecd0580ec623c42006dd1b">datasketches::quantiles_sketch::get_allocator</a></div><div class="ttdeci">allocator_type get_allocator() const</div><div class="ttdoc">Returns the allocator for this sketch.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:686</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_ac02fcfb6e706148458a2ef89390223a9"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#ac02fcfb6e706148458a2ef89390223a9">datasketches::quantiles_sketch::get_quantile</a></div><div class="ttdeci">quantile_return_type get_quantile(double rank, bool inclusive=true) const</div><div class="ttdoc">Returns an approximation to the data item associated with the given rank of a hypothetical sorted ver...</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:744</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_ac5337e7ce1f6a4ebcef233caf3e24c01"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#ac5337e7ce1f6a4ebcef233caf3e24c01">datasketches::quantiles_sketch::begin</a></div><div class="ttdeci">const_iterator begin() const</div><div class="ttdoc">Iterator pointing to the first item in the sketch.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:866</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_ad9a5259d93d148b5c2050d68e7788716"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#ad9a5259d93d148b5c2050d68e7788716">datasketches::quantiles_sketch::get_serialized_size_bytes</a></div><div class="ttdeci">size_t get_serialized_size_bytes(const SerDe &amp;sd=SerDe()) const</div><div class="ttdoc">Computes size needed to serialize the current state of the sketch.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:693</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_ae95a04b1d7dccb3d9b3f3c3d087aa8e6"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#ae95a04b1d7dccb3d9b3f3c3d087aa8e6">datasketches::quantiles_sketch::is_estimation_mode</a></div><div class="ttdeci">bool is_estimation_mode() const</div><div class="ttdoc">Returns true if this sketch is in estimation mode.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:659</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_aebff865d9a4828eb346de6be97135bdc"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#aebff865d9a4828eb346de6be97135bdc">datasketches::quantiles_sketch::quantiles_sketch</a></div><div class="ttdeci">quantiles_sketch(const quantiles_sketch&lt; From, FC, FA &gt; &amp;other, const Comparator &amp;comparator=Comparator(), const Allocator &amp;allocator=Allocator())</div><div class="ttdoc">Type converting constructor.</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_af2fa890815acf3a1418ea8eee466075c"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#af2fa890815acf3a1418ea8eee466075c">datasketches::quantiles_sketch::get_min_item</a></div><div class="ttdeci">const T &amp; get_min_item() const</div><div class="ttdoc">Returns the min item of the stream.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:669</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_af3d8f736304ab5d51319c00febfc0ad1"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#af3d8f736304ab5d51319c00febfc0ad1">datasketches::quantiles_sketch::end</a></div><div class="ttdeci">const_iterator end() const</div><div class="ttdoc">Iterator pointing to the past-the-end item in the sketch.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:871</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sketch_html_af857be9469a7565252626f27e1f9d74d"><div class="ttname"><a href="classdatasketches_1_1quantiles__sketch.html#af857be9469a7565252626f27e1f9d74d">datasketches::quantiles_sketch::get_n</a></div><div class="ttdeci">uint64_t get_n() const</div><div class="ttdoc">Returns the length of the input stream.</div><div class="ttdef"><b>Definition:</b> quantiles_sketch_impl.hpp:649</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sorted__view_html"><div class="ttname"><a href="classdatasketches_1_1quantiles__sorted__view.html">datasketches::quantiles_sorted_view</a></div><div class="ttdoc">Sorted view for quantiles sketches (REQ, KLL and Quantiles)</div><div class="ttdef"><b>Definition:</b> quantiles_sorted_view.hpp:38</div></div>
<div class="ttc" id="aclassdatasketches_1_1quantiles__sorted__view_html_a5ab4905c4f3ebeb14de4e7a2f5d92832"><div class="ttname"><a href="classdatasketches_1_1quantiles__sorted__view.html#a5ab4905c4f3ebeb14de4e7a2f5d92832">datasketches::quantiles_sorted_view::quantile_return_type</a></div><div class="ttdeci">typename std::conditional&lt; std::is_arithmetic&lt; T &gt;::value, T, const T &amp; &gt;::type quantile_return_type</div><div class="ttdoc">Quantile return type.</div><div class="ttdef"><b>Definition:</b> quantiles_sorted_view.hpp:93</div></div>
<div class="ttc" id="anamespacedatasketches_1_1quantiles__constants_html_a3bd28528c16e8911658faff9c98b305f"><div class="ttname"><a href="namespacedatasketches_1_1quantiles__constants.html#a3bd28528c16e8911658faff9c98b305f">datasketches::quantiles_constants::MAX_K</a></div><div class="ttdeci">const uint16_t MAX_K</div><div class="ttdoc">maximum value of parameter K</div><div class="ttdef"><b>Definition:</b> quantiles_sketch.hpp:41</div></div>
<div class="ttc" id="anamespacedatasketches_1_1quantiles__constants_html_ab9f2b631adf46fe04a11814cd1018926"><div class="ttname"><a href="namespacedatasketches_1_1quantiles__constants.html#ab9f2b631adf46fe04a11814cd1018926">datasketches::quantiles_constants::MIN_K</a></div><div class="ttdeci">const uint16_t MIN_K</div><div class="ttdoc">minimum value of parameter K</div><div class="ttdef"><b>Definition:</b> quantiles_sketch.hpp:39</div></div>
<div class="ttc" id="anamespacedatasketches_1_1quantiles__constants_html_ac8602cb1bd28fc26ae74b484e81a9a52"><div class="ttname"><a href="namespacedatasketches_1_1quantiles__constants.html#ac8602cb1bd28fc26ae74b484e81a9a52">datasketches::quantiles_constants::DEFAULT_K</a></div><div class="ttdeci">const uint16_t DEFAULT_K</div><div class="ttdoc">default value of parameter K</div><div class="ttdef"><b>Definition:</b> quantiles_sketch.hpp:37</div></div>
<div class="ttc" id="anamespacedatasketches_html"><div class="ttname"><a href="namespacedatasketches.html">datasketches</a></div><div class="ttdoc">DataSketches namespace.</div><div class="ttdef"><b>Definition:</b> binomial_bounds.hpp:38</div></div>
<div class="ttc" id="astructdatasketches_1_1serde_html"><div class="ttname"><a href="structdatasketches_1_1serde.html">datasketches::serde</a></div><div class="ttdoc">Interface for serializing and deserializing items.</div><div class="ttdef"><b>Definition:</b> serde.hpp:34</div></div>
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