Violinplots allow to visualize the distribution of a numeric variable for one or several groups. It is really close from a boxplot, but allows a deeper understanding of the distribution. Violins are particularly adapted when the amount of data is huge and showing individual observations gets impossible.
<!-- 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/canvasXpress.min.js"></script> <!-- 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" : { "dose" : ["0.5","0.5","0.5","0.5","0.5","0.5","0.5","0.5","0.5","0.5","1","1","1","1","1","1","1","1","1","1","2","2","2","2","2","2","2","2","2","2","0.5","0.5","0.5","0.5","0.5","0.5","0.5","0.5","0.5","0.5","1","1","1","1","1","1","1","1","1","1","2","2","2","2","2","2","2","2","2","2"], "order" : [1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10], "supp" : ["VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","VC","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ","OJ"] }, "y" : { "data" : [ [4.2,11.5,7.3,5.8,6.4,10,11.2,11.2,5.2,7,16.5,16.5,15.2,17.3,22.5,17.3,13.6,14.5,18.8,15.5,23.6,18.5,33.9,25.5,26.4,32.5,26.7,21.5,23.3,29.5,15.2,21.5,17.6,9.7,14.5,10,8.2,9.4,16.5,9.7,19.7,23.3,23.6,26.4,20,25.2,25.8,21.2,14.5,27.3,25.5,26.4,22.4,24.5,24.8,30.9,26.4,27.3,29.4,23] ], "smps" : ["Var1","Var2","Var3","Var4","Var5","Var6","Var7","Var8","Var9","Var10","Var11","Var12","Var13","Var14","Var15","Var16","Var17","Var18","Var19","Var20","Var21","Var22","Var23","Var24","Var25","Var26","Var27","Var28","Var29","Var30","Var31","Var32","Var33","Var34","Var35","Var36","Var37","Var38","Var39","Var40","Var41","Var42","Var43","Var44","Var45","Var46","Var47","Var48","Var49","Var50","Var51","Var52","Var53","Var54","Var55","Var56","Var57","Var58","Var59","Var60"], "vars" : ["len"] } } <-- Create the configuration for the graph --> var config = { "axisAlgorithm":"rPretty", "axisTickScaleFontFactor":1.8, "axisTitleFontStyle":"bold", "axisTitleScaleFontFactor":1.8, "background":"white", "backgroundType":"window", "backgroundWindow":"#E5E5E5", "graphOrientation":"vertical", "graphType":"Boxplot", "groupingFactors":[ "dose" ], "guides":"solid", "guidesColor":"white", "showBoxplotIfViolin":"false", "showLegend":"false", "showViolinBoxplot":"true", "smpLabelRotate":"90", "smpLabelScaleFontFactor":1.8, "smpTitle":"dose", "smpTitleFontStyle":"bold", "smpTitleScaleFontFactor":1.8, "theme":"CanvasXpress", "title":"The Effect of Vitamin C on Tooth Growth in Guinea Pigs", "violinScale":"count", "xAxis2Show":"false", "xAxisTickColor":"white", "xAxisTicksMinorShow":"false", "xAxisTitle":"len" } <!-- Call the CanvasXpress function to create the graph --> var cX = new CanvasXpress("canvasId", data, config); </script>
library(canvasXpress) y=read.table("https://www.canvasxpress.org/data/cX-toothgrowth-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-toothgrowth-smp.txt", header=TRUE, sep="\t", quote="", row.names=1, fill=TRUE, check.names=FALSE, stringsAsFactors=FALSE) canvasXpress( data=y, smpAnnot=x, axisAlgorithm="rPretty", axisTickScaleFontFactor=1.8, axisTitleFontStyle="bold", axisTitleScaleFontFactor=1.8, background="white", backgroundType="window", backgroundWindow="#E5E5E5", graphOrientation="vertical", graphType="Boxplot", groupingFactors=list("dose"), guides="solid", guidesColor="white", showBoxplotIfViolin=FALSE, showLegend=FALSE, showViolinBoxplot=TRUE, smpLabelRotate=90, smpLabelScaleFontFactor=1.8, smpTitle="dose", smpTitleFontStyle="bold", smpTitleScaleFontFactor=1.8, theme="CanvasXpress", title="The Effect of Vitamin C on Tooth Growth in Guinea Pigs", violinScale="count", xAxis2Show=FALSE, xAxisTickColor="white", xAxisTicksMinorShow=FALSE, xAxisTitle="len" )
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