Line Chart

A line chart or line graph displays the evolution of one or several numeric variables. Data points are connected by straight line segments. It is similar to a scatter plot except that the measurement points are ordered (typically by their x-axis value) and joined with straight line segments. A line chart is often used to visualize a trend in data over intervals of time – a time series – thus the line is often drawn chronologically. When several values are available for each time stamp, data can be aggregated and a confidence zone is generally added around the trend.


Example Color Themes

Example Fonts

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Show Code

Tools

<head>
  <!-- Include the CanvasXpress library in your HTML file -->
  <link rel="stylesheet" href="https://www.canvasxpress.org/dist/canvasXpress.css" type="text/css"/>
  <script src="https://www.canvasxpress.org/dist/canvasXpress.min.js"></script>
</head>

<body>

  <!-- Create a canvas element for the chart with the desired dimensions -->
  <div>
    <canvas id="canvasId" width="600" height="600"></canvas>
  </div>


  <!-- Create a script to initialize the chart -->
  <script>

    // Create the data for the graph
    var data = {
       "x" : {
          "Factor1" : ["Lev : 1","Lev : 2","Lev : 3","Lev : 1","Lev : 2","Lev : 3"],
          "Factor2" : ["Lev : A","Lev : B","Lev : A","Lev : B","Lev : A","Lev : B"],
          "Factor3" : ["Lev : X","Lev : X","Lev : Y","Lev : Y","Lev : Z","Lev : Z"],
          "Factor4" : [5,10,15,20,25,30],
          "Factor5" : [8,16,24,32,40,48],
          "Factor6" : [10,20,30,40,50,60]
       },
       "y" : {
          "data" : [
            [5,10,25,40,45,50],
            [95,80,75,70,55,40],
            [25,30,45,60,65,70],
            [55,40,35,30,15,1]
          ],
          "desc" : ["Magnitude1","Magnitude2"],
          "smps" : ["S1","S2","S3","S4","S5","S6"],
          "vars" : ["V1","V2","V3","V4"]
       },
       "z" : {
          "Annt1" : ["Desc : 1","Desc : 2","Desc : 3","Desc : 4"],
          "Annt2" : ["Desc : A","Desc : B","Desc : A","Desc : B"],
          "Annt3" : ["Desc : X","Desc : X","Desc : Y","Desc : Y"],
          "Annt4" : [5,10,15,20],
          "Annt5" : [8,16,24,32],
          "Annt6" : [10,20,30,40]
       }
    }
    
    
    // Create the configuration for the graph
    var config = {
       "graphOrientation":"vertical",
       "graphType":"Line",
       "legendPosition":"right",
       "lineDecoration":"pattern",
       "smpTextRotate":"90",
       "smpTitle":"Collection of Samples",
       "smpTitleFontStyle":"italic",
       "splitSamplesBy":"Factor3",
       "theme":"blackAndWhite",
       "title":"Random Data"
    }
    

    // Call the CanvasXpress function to create the graph
    var cX = new CanvasXpress("canvasId", data, config);


  </script>

</body>

library(canvasXpress)
y=read.table("https://www.canvasxpress.org/data/cX-generic-dat.txt", header=TRUE, sep="\t", quote="", row.names=1, fill=TRUE, check.names=FALSE, stringsAsFactors=FALSE)
x=read.table("https://www.canvasxpress.org/data/cX-generic-smp.txt", header=TRUE, sep="\t", quote="", row.names=1, fill=TRUE, check.names=FALSE, stringsAsFactors=FALSE)
z=read.table("https://www.canvasxpress.org/data/cX-generic-var.txt", header=TRUE, sep="\t", quote="", row.names=1, fill=TRUE, check.names=FALSE, stringsAsFactors=FALSE)
canvasXpress(
  data=y,
  smpAnnot=x,
  varAnnot=z,
  graphOrientation="vertical",
  graphType="Line",
  legendPosition="right",
  lineDecoration="pattern",
  smpTextRotate=90,
  smpTitle="Collection of Samples",
  smpTitleFontStyle="italic",
  splitSamplesBy="Factor3",
  theme="blackAndWhite",
  title="Random Data"
)