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style="display:none"><li class="nav-item"><a href="/handbook/en/how-to/animation/transition" class="nav-link"><span class="title">Data Transition</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li></ul></li><li class="nav-item"><a class="nav-link"><span class="title">Interaction</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level2" style="display:none"><li class="nav-item"><a href="/handbook/en/how-to/interaction/drag" class="nav-link"><span class="title">Drag</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li><!----></ul></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">Best Practices</span></div> <ul class="nav bd-sidenav level1"><!----><li class="nav-item"><a href="/handbook/en/best-practices/canvas-vs-svg" class="nav-link"><span class="title">Canvas vs. SVG</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li><li class="nav-item"><a href="/handbook/en/best-practices/aria" class="nav-link"><span class="title">Aria</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">Edit Handbook</span></div> <ul class="nav bd-sidenav level1"><li class="nav-item"><a href="/handbook/en/meta/edit-guide" class="nav-link"><span class="title">Edit Guide</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li></ul></li></ul></div> <div class="open-sidebar"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7"></path></svg></div></div> <div class="bd-content col-sm-7 pl-sm-2 col-12"><div class="post-content content"><div><div class="post-inner"><!----> <div class="nuxt-content"><article><h1 id="step-line-chart" tabindex="-1">Step Line Chart</h1> <p>The normal line chart connects two points by straight line directly, while the step line chart, also known as square wave chart, uses only horizontal and vertical lines to connect the nearby items together. Compared with the normal line chart, the step line chart significantly shows the sudden changes of analyzed data.</p> <p>In ECharts, <code>step</code> is used to characterize the connection type of the step line chart. It has three available values: <code>'start'</code>, <code>'end'</code>, and <code>'middle'</code>. For item A and B, these values corresponded that the corner occurred at A, B, and mid-point between A and B.</p> <div class="md-live layout-tb"><div class="md-live-editor"><div class="md-live-editor-container"><div class="prism-editor-wrapper"><div class="prism-editor__container"><textarea spellcheck="false" autocapitalize="off" autocomplete="off" autocorrect="off" data-gramm="false" placeholder="" data-testid="textarea" class="prism-editor__textarea">option = {
  legend: {},
  xAxis: {
    type: 'category',
    data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
  },
  yAxis: {
    type: 'value'
  },
  series: [
    {
      name: 'Step Start',
      type: 'line',
      step: 'start',
      data: [120, 132, 101, 134, 90, 230, 210]
    },
    {
      name: 'Step Middle',
      type: 'line',
      step: 'middle',
      data: [220, 282, 201, 234, 290, 430, 410]
    },
    {
      name: 'Step End',
      type: 'line',
      step: 'end',
      data: [450, 432, 401, 454, 590, 530, 510]
    }
  ]
};</textarea><pre data-testid="preview" class="prism-editor__editor">option <span class="token operator">=</span> <span class="token punctuation">{</span>
  legend<span class="token operator">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span>
  xAxis<span class="token operator">:</span> <span class="token punctuation">{</span>
    type<span class="token operator">:</span> <span class="token string">'category'</span><span class="token punctuation">,</span>
    data<span class="token operator">:</span> <span class="token punctuation">[</span><span class="token string">'Mon'</span><span class="token punctuation">,</span> <span class="token string">'Tue'</span><span class="token punctuation">,</span> <span class="token string">'Wed'</span><span class="token punctuation">,</span> <span class="token string">'Thu'</span><span class="token punctuation">,</span> <span class="token string">'Fri'</span><span class="token punctuation">,</span> <span class="token string">'Sat'</span><span class="token punctuation">,</span> <span class="token string">'Sun'</span><span class="token punctuation">]</span>
  <span class="token punctuation">}</span><span class="token punctuation">,</span>
  yAxis<span class="token operator">:</span> <span class="token punctuation">{</span>
    type<span class="token operator">:</span> <span class="token string">'value'</span>
  <span class="token punctuation">}</span><span class="token punctuation">,</span>
  series<span class="token operator">:</span> <span class="token punctuation">[</span>
    <span class="token punctuation">{</span>
      name<span class="token operator">:</span> <span class="token string">'Step Start'</span><span class="token punctuation">,</span>
      type<span class="token operator">:</span> <span class="token string">'line'</span><span class="token punctuation">,</span>
      step<span class="token operator">:</span> <span class="token string">'start'</span><span class="token punctuation">,</span>
      data<span class="token operator">:</span> <span class="token punctuation">[</span><span class="token number">120</span><span class="token punctuation">,</span> <span class="token number">132</span><span class="token punctuation">,</span> <span class="token number">101</span><span class="token punctuation">,</span> <span class="token number">134</span><span class="token punctuation">,</span> <span class="token number">90</span><span class="token punctuation">,</span> <span class="token number">230</span><span class="token punctuation">,</span> <span class="token number">210</span><span class="token punctuation">]</span>
    <span class="token punctuation">}</span><span class="token punctuation">,</span>
    <span class="token punctuation">{</span>
      name<span class="token operator">:</span> <span class="token string">'Step Middle'</span><span class="token punctuation">,</span>
      type<span class="token operator">:</span> <span class="token string">'line'</span><span class="token punctuation">,</span>
      step<span class="token operator">:</span> <span class="token string">'middle'</span><span class="token punctuation">,</span>
      data<span class="token operator">:</span> <span class="token punctuation">[</span><span class="token number">220</span><span class="token punctuation">,</span> <span class="token number">282</span><span class="token punctuation">,</span> <span class="token number">201</span><span class="token punctuation">,</span> <span class="token number">234</span><span class="token punctuation">,</span> <span class="token number">290</span><span class="token punctuation">,</span> <span class="token number">430</span><span class="token punctuation">,</span> <span class="token number">410</span><span class="token punctuation">]</span>
    <span class="token punctuation">}</span><span class="token punctuation">,</span>
    <span class="token punctuation">{</span>
      name<span class="token operator">:</span> <span class="token string">'Step End'</span><span class="token punctuation">,</span>
      type<span class="token operator">:</span> <span class="token string">'line'</span><span class="token punctuation">,</span>
      step<span class="token operator">:</span> <span class="token string">'end'</span><span class="token punctuation">,</span>
      data<span class="token operator">:</span> <span class="token punctuation">[</span><span class="token number">450</span><span class="token punctuation">,</span> <span class="token number">432</span><span class="token punctuation">,</span> <span class="token number">401</span><span class="token punctuation">,</span> <span class="token number">454</span><span class="token punctuation">,</span> <span class="token number">590</span><span class="token punctuation">,</span> <span class="token number">530</span><span class="token punctuation">,</span> <span class="token number">510</span><span class="token punctuation">]</span>
    <span class="token punctuation">}</span>
  <span class="token punctuation">]</span>
<span class="token punctuation">}</span><span class="token punctuation">;</span><br></pre></div></div></div> <div class="md-live-tag">live</div> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div> <div class="md-live-preview"></div></div> <blockquote><p>Please focus on the difference of line between three separate types.</p></blockquote></article></div></div> <div class="post-contributors"><h3><span class="inline-block align-middle">Contributors</span> <a target="_blank" href="https://github.com/apache/echarts-handbook/tree/master/contents/en/how-to/chart-types/line/step-line.md" title="Edit this Document" class="inline-block align-middle text-sm"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-8 w-8 inline-block align-middle"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"></path></svg> <span class="inline-block align-middle">Edit this page on GitHub</span></a></h3> <div class="post-contributors-list"><a href="https://github.com/pissang" target="_blank" class="post-contributor"><img alt="pissang" src="https://avatars.githubusercontent.com/pissang?size=60"> <span>pissang</span></a></div></div></div></div></div></div> <link rel="stylesheet" href="//fastly.jsdelivr.net/npm/highlight.js@9.12.0/styles/github-gist.min.css"></div></div></div></div><script>window.__NUXT__=function(t,i,e,r,d,l,a,n,o,c,s,h,g,C,p,A,I,w,b,f,m,u,B,y,v,M,k,L,S,D,R,T,x,G,P,E,z,J,V,H,U,Z,O,W,X,N,K,F,Y,Q,_,j,q,$,tt,it,et,rt,dt){return{layout:"default",data:[{html:'<h1 id="step-line-chart" tabindex="-1">Step Line Chart</h1>\n<p>The normal line chart connects two points by straight line directly, while the step line chart, also known as square wave chart, uses only horizontal and vertical lines to connect the nearby items together. Compared with the normal line chart, the step line chart significantly shows the sudden changes of analyzed data.</p>\n<p>In ECharts, <code>step</code> is used to characterize the connection type of the step line chart. It has three available values: <code>\'start\'</code>, <code>\'end\'</code>, and <code>\'middle\'</code>. For item A and B, these values corresponded that the corner occurred at A, B, and mid-point between A and B.</p>\n<md-live lang="js" code="\'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\'" v-bind="{}" />\n<blockquote>\n<p>Please focus on the difference of line between three separate 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