plotly / plotly/plotly.js

Lines on scatter graph not showing up

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bug P3
Dominant language
JavaScript
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Avg merge
2d 12h
Merged PRs (30d)
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Description

I have been trying to figure out this issue without opening a ticket for the mean time and have followed all the guides on using plotly.js in typescript and for the most part the plugin works and works well however some of the functionality is just not working the biggest issue is certain lines are not showing up.

When I make a scatter graph all of the data and information is there mostly visible but when the trace mode is just mode: 'lines' the lines do not show up.

Screen Shot 2020-05-15 at 10 59 08 AM

and when I change the mode to mode: 'markers'

Screen Shot 2020-05-15 at 11 00 25 AM

witch is a decent work around for the problem but I also need to fill: 'tozeroy' that isn't working either.

Currently using;
"plotly.js": "^1.54.1"

Here is the code that is used to generate these graphs

let data: any[] = [{ 
      x: this.plotData.z,
      y: this.plotData.y,
      type: 'scatter',
      mode: 'markers',
      fill: 'tozeroy',
      fillcolor: '#A6CEE3',
      marker: {
        color: 'black',
        size: 3
      }
    }];
    
    let layout: any = {
      title: `Standard Normal Distribution`,
      showlegend: false,
      xaxis: {
        ticks: 'outside',
        zeroline: false,
        showgrid: false
      },
      yaxis: {
        rangemode: 'tozero',
        zeroline: true,
        showline: false,
        showticklabels: false,
        showgrid: false
      },
      annotations: [
         {
           text: Math.round((100*this.Pval/2)*100)/100 + '%',
           x: Math.abs(this.teststat),
           y: 0,
           xref: 'x',
           yref: 'y',
           xshift: 12,
           yshift: -2,
           ax: 2.5,
           ay: 0.1,
           axref: 'x',
           ayref: 'y',
           bordercolor: 'black',
           showarrow: true
         }
      ],
      height: 200,
      margin: {
        l: 0,
        r: 0,
        b: 35,
        t: 50,
        pad: 0
      },
      displaylogo: false
    };

    if(this.mode == 'two') {
      let index: PlotData;
      index = await this.pullData(-Math.abs(this.teststat), '<=');
      data.push({
        x: index.z,
        y: index.y,
        type: 'scatter',
        mode: 'markers',
        fill: 'tozeroy',
        fillcolor: '#1F78B4',
        marker: {
          color: '#1F78B4',
          size: 3
        },
        name: 'P-value',
        hoverinfo: 'name'
      })
      index = await this.pullData(Math.abs(this.teststat), '>=');
      data.push({
        x: index.z,
        y: index.y,
        type: 'scatter',
        mode: 'markers',
        fill: 'tozeroy',
        fillcolor: '#1F78B4',
        marker: {
          color: '#1F78B4',
          size: 3
        },
        name: 'P-value',
        hoverinfo: 'name'
      })
      layout.annotations.push({
        x: -Math.abs(this.teststat),
        y: R.dnorm(this.teststat)/2,
        xshift: -12,
        yshift: -2,
        text: Math.round((100*this.Pval/2) * 100)/100 + '%',
        bordercolor: 'black',
        xref: 'x',
        yref: 'y',
        showarrow: true,
        arrowhead: 2,
        ax: -2.5,
        ay: 0.1,
        axref: 'x',
        ayref: 'y'
      })
      layout.annotations.push({
        x: Math.abs(this.teststat),
        y: R.dnorm(this.teststat)/2,
        xshift: -12,
        yshift: -2,
        text: Math.round((100*this.Pval/2) * 100)/100 + '%',
        bordercolor: 'black',
        xref: 'x',
        yref: 'y',
        showarrow: true,
        arrowhead: 2,
        ax: -2.5,
        ay: 0.1,
        axref: 'x',
        ayref: 'y'
      })
    }

    if(this.mode == 'less') {
      let index: PlotData;
      index = await this.pullData(Math.abs(this.teststat), '<=');
      data.push({
        x: index.z,
        y: index.y,
        type: 'scatter',
        mode: 'markers',
        fill: 'tozeroy',
        fillcolor: '#1F78B4',
        marker: {
          color: '#1F78B4',
          size: 3
        },
        name: 'P-value',
        hoverinfo: 'name'
      })
      layout.annotations.push({
        x: Math.abs(this.teststat),
        y: R.dnorm(this.teststat)/2,
        xshift: -12,
        yshift: -2,
        text: Math.round((100*this.Pval) * 100)/100 + '%',
        bordercolor: 'black',
        xref: 'x',
        yref: 'y',
        showarrow: true,
        arrowhead: 2,
        ax: -2.5,
        ay: 0.1,
        axref: 'x',
        ayref: 'y'
      })
    }

    if(this.mode == 'great'){
      let index: PlotData;
      index = await this.pullData(Math.abs(this.teststat), '>=');
      data.push({
        x: index.z,
        y: index.y,
        type: 'scatter',
        mode: 'markers',
        fill: 'tozeroy',
        fillcolor: '#1F78B4',
        marker: {
          color: '#1F78B4',
          size: 3
        },
        name: 'P-value',
        hoverinfo: 'name'
      })
      layout.annotations.push({
        x: Math.abs(this.teststat),
        y: R.dnorm(this.teststat)/2,
        xshift: -12,
        yshift: -2,
        text: Math.round((100*this.Pval) * 100)/100 + '%',
        bordercolor: 'black',
        xref: 'x',
        yref: 'y',
        showarrow: true,
        arrowhead: 2,
        ax: -2.5,
        ay: 0.1,
        axref: 'x',
        ayref: 'y'
      })
    }

    Plotly.newPlot("distribution", data, layout);

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the report with plotly.js 1.54.1 and the supplied scatter data and layout passed to Plotly.newPlot("distribution", data, layout). Compare the rendering of the same traces using mode 'lines' versus 'markers', including fill: 'tozeroy'; done means the lines and fill render for the reported configuration or the issue is narrowed to a documented data or layout condition.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
data-visualization
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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