| import{_ as n,O as e,P as s,ah as a,aW as i}from"./framework-e4340ccd.js";const t={},d=i(`<h2 id="机器学习" tabindex="-1"><a class="header-anchor" href="#机器学习" aria-hidden="true">#</a> 机器学习</h2><h3 id="ar" tabindex="-1"><a class="header-anchor" href="#ar" aria-hidden="true">#</a> AR</h3><h4 id="函数简介" tabindex="-1"><a class="header-anchor" href="#函数简介" aria-hidden="true">#</a> 函数简介</h4><p>本函数用于学习数据的自回归模型系数。</p><p><strong>函数名:</strong> AR</p><p><strong>输入序列:</strong> 仅支持单个输入序列,类型为 INT32 / INT64 / FLOAT / DOUBLE。</p><p><strong>参数:</strong></p><ul><li><code>p</code>:自回归模型的阶数。默认为1。</li></ul><p><strong>输出序列:</strong> 输出单个序列,类型为 DOUBLE。第一行对应模型的一阶系数,以此类推。</p><p><strong>提示:</strong></p><ul><li><p><code>p</code>应为正整数。</p></li><li><p>序列中的大部分点为等间隔采样点。</p></li><li><p>序列中的缺失点通过线性插值进行填补后用于学习过程。</p></li></ul><h4 id="使用示例" tabindex="-1"><a class="header-anchor" href="#使用示例" aria-hidden="true">#</a> 使用示例</h4><h5 id="指定阶数" tabindex="-1"><a class="header-anchor" href="#指定阶数" aria-hidden="true">#</a> 指定阶数</h5><p>输入序列:</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>+-----------------------------+---------------+ |
| | Time|root.test.d0.s0| |
| +-----------------------------+---------------+ |
| |2020-01-01T00:00:01.000+08:00| -4.0| |
| |2020-01-01T00:00:02.000+08:00| -3.0| |
| |2020-01-01T00:00:03.000+08:00| -2.0| |
| |2020-01-01T00:00:04.000+08:00| -1.0| |
| |2020-01-01T00:00:05.000+08:00| 0.0| |
| |2020-01-01T00:00:06.000+08:00| 1.0| |
| |2020-01-01T00:00:07.000+08:00| 2.0| |
| |2020-01-01T00:00:08.000+08:00| 3.0| |
| |2020-01-01T00:00:09.000+08:00| 4.0| |
| +-----------------------------+---------------+ |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>用于查询的 SQL 语句:</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> ar<span class="token punctuation">(</span>s0<span class="token punctuation">,</span><span class="token string">"p"</span><span class="token operator">=</span><span class="token string">"2"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d0 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>输出序列:</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>+-----------------------------+---------------------------+ |
| | Time|ar(root.test.d0.s0,"p"="2")| |
| +-----------------------------+---------------------------+ |
| |1970-01-01T08:00:00.001+08:00| 0.9429| |
| |1970-01-01T08:00:00.002+08:00| -0.2571| |
| +-----------------------------+---------------------------+ |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="representation" tabindex="-1"><a class="header-anchor" href="#representation" aria-hidden="true">#</a> Representation</h3><h4 id="函数简介-1" tabindex="-1"><a class="header-anchor" href="#函数简介-1" aria-hidden="true">#</a> 函数简介</h4><p>本函数用于时间序列的表示。</p><p><strong>函数名:</strong> Representation</p><p><strong>输入序列:</strong> 仅支持单个输入序列,类型为 INT32 / INT64 / FLOAT / DOUBLE。</p><p><strong>参数:</strong></p><ul><li><code>tb</code>:时间分块数量。默认为10。</li><li><code>vb</code>:值分块数量。默认为10。</li></ul><p><strong>输出序列:</strong> 输出单个序列,类型为INT32,长度为<code>tb*vb</code>。序列的时间戳从0开始,仅用于表示顺序。</p><p><strong>提示:</strong></p><ul><li><code>tb </code>,<code>vb</code>应为正整数。</li></ul><h4 id="使用示例-1" tabindex="-1"><a class="header-anchor" href="#使用示例-1" aria-hidden="true">#</a> 使用示例</h4><h5 id="指定时间分块数量、值分块数量" tabindex="-1"><a class="header-anchor" href="#指定时间分块数量、值分块数量" aria-hidden="true">#</a> 指定时间分块数量、值分块数量</h5><p>输入序列:</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>+-----------------------------+---------------+ |
| | Time|root.test.d0.s0| |
| +-----------------------------+---------------+ |
| |2020-01-01T00:00:01.000+08:00| -4.0| |
| |2020-01-01T00:00:02.000+08:00| -3.0| |
| |2020-01-01T00:00:03.000+08:00| -2.0| |
| |2020-01-01T00:00:04.000+08:00| -1.0| |
| |2020-01-01T00:00:05.000+08:00| 0.0| |
| |2020-01-01T00:00:06.000+08:00| 1.0| |
| |2020-01-01T00:00:07.000+08:00| 2.0| |
| |2020-01-01T00:00:08.000+08:00| 3.0| |
| |2020-01-01T00:00:09.000+08:00| 4.0| |
| +-----------------------------+---------------+ |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>用于查询的 SQL 语句:</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> representation<span class="token punctuation">(</span>s0<span class="token punctuation">,</span><span class="token string">"tb"</span><span class="token operator">=</span><span class="token string">"3"</span><span class="token punctuation">,</span><span class="token string">"vb"</span><span class="token operator">=</span><span class="token string">"2"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d0 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>输出序列:</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>+-----------------------------+-------------------------------------------------+ |
| | Time|representation(root.test.d0.s0,"tb"="3","vb"="2")| |
| +-----------------------------+-------------------------------------------------+ |
| |1970-01-01T08:00:00.001+08:00| 1| |
| |1970-01-01T08:00:00.002+08:00| 1| |
| |1970-01-01T08:00:00.003+08:00| 0| |
| |1970-01-01T08:00:00.004+08:00| 0| |
| |1970-01-01T08:00:00.005+08:00| 1| |
| |1970-01-01T08:00:00.006+08:00| 1| |
| +-----------------------------+-------------------------------------------------+ |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="rm" tabindex="-1"><a class="header-anchor" href="#rm" aria-hidden="true">#</a> RM</h3><h4 id="函数简介-2" tabindex="-1"><a class="header-anchor" href="#函数简介-2" aria-hidden="true">#</a> 函数简介</h4><p>本函数用于基于时间序列表示的匹配度。</p><p><strong>函数名:</strong> RM</p><p><strong>输入序列:</strong> 仅支持两个输入序列,类型为 INT32 / INT64 / FLOAT / DOUBLE。</p><p><strong>参数:</strong></p><ul><li><code>tb</code>:时间分块数量。默认为10。</li><li><code>vb</code>:值分块数量。默认为10。</li></ul><p><strong>输出序列:</strong> 输出单个序列,类型为DOUBLE,长度为<code>1</code>。序列的时间戳从0开始,序列仅有一个数据点,其时间戳为0,值为两个时间序列的匹配度。</p><p><strong>提示:</strong></p><ul><li><code>tb </code>,<code>vb</code>应为正整数。</li></ul><h4 id="使用示例-2" tabindex="-1"><a class="header-anchor" href="#使用示例-2" aria-hidden="true">#</a> 使用示例</h4><h5 id="指定时间分块数量、值分块数量-1" tabindex="-1"><a class="header-anchor" href="#指定时间分块数量、值分块数量-1" aria-hidden="true">#</a> 指定时间分块数量、值分块数量</h5><p>输入序列:</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>+-----------------------------+---------------+---------------+ |
| | Time|root.test.d0.s0|root.test.d0.s1 |
| +-----------------------------+---------------+---------------+ |
| |2020-01-01T00:00:01.000+08:00| -4.0| -4.0| |
| |2020-01-01T00:00:02.000+08:00| -3.0| -3.0| |
| |2020-01-01T00:00:03.000+08:00| -3.0| -3.0| |
| |2020-01-01T00:00:04.000+08:00| -1.0| -1.0| |
| |2020-01-01T00:00:05.000+08:00| 0.0| 0.0| |
| |2020-01-01T00:00:06.000+08:00| 1.0| 1.0| |
| |2020-01-01T00:00:07.000+08:00| 2.0| 2.0| |
| |2020-01-01T00:00:08.000+08:00| 3.0| 3.0| |
| |2020-01-01T00:00:09.000+08:00| 4.0| 4.0| |
| +-----------------------------+---------------+---------------+ |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>用于查询的 SQL 语句:</p><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">select</span> rm<span class="token punctuation">(</span>s0<span class="token punctuation">,</span> s1<span class="token punctuation">,</span><span class="token string">"tb"</span><span class="token operator">=</span><span class="token string">"3"</span><span class="token punctuation">,</span><span class="token string">"vb"</span><span class="token operator">=</span><span class="token string">"2"</span><span class="token punctuation">)</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>d0 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>输出序列:</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>+-----------------------------+-----------------------------------------------------+ |
| | Time|rm(root.test.d0.s0,root.test.d0.s1,"tb"="3","vb"="2")| |
| +-----------------------------+-----------------------------------------------------+ |
| |1970-01-01T08:00:00.001+08:00| 1.00| |
| +-----------------------------+-----------------------------------------------------+ |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div>`,55);function r(l,o){return e(),s("div",null,[a(` |
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| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
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| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| |
| `),d])}const u=n(t,[["render",r],["__file","Machine-Learning.html.vue"]]);export{u as default}; |