Waterfall Chart

A waterfall chart is a form of data visualization that helps in understanding the cumulative effect of sequentially introduced positive or negative values. These intermediate values can either be time based or category based.



Color Themes


{
   "x" : {
      "Treatment" : ["Trt-2","Trt-2","Trt-2","Trt-2","Trt-2","Trt-1","Trt-1","Trt-1","Trt-1","Trt-1","Trt-1","Trt-1","Trt-2","Trt-1","Trt-1","Trt-1","Trt-1","Trt-2","Trt-1","Trt-1","Trt-1","Trt-1","Trt-1","Trt-2","Trt-1","Trt-2","Trt-1","Trt-2","Trt-1","Trt-1","Trt-2","Trt-1","Trt-2","Trt-2","Trt-2","Trt-1","Trt-2","Trt-2","Trt-2","Trt-1","Trt-2","Trt-1","Trt-2","Trt-2","Trt-2","Trt-2","Trt-1","Trt-2","Trt-1","Trt-2","Trt-2","Trt-2","Trt-2","Trt-1","Trt-1"]
   },
   "y" : {
      "data" : [
        [109.09,89.65,57.14,54.54,52.38,47.05,42.1,37.28,36.66,36.53,32.65,32.07,31.48,29.62,29.5,29.16,28.57,28,27.45,23.07,21.56,20.75,19.23,18.75,17.64,17.3,16,15.25,15.15,14.54,13.04,11.76,10.9,7.4,7.14,7.01,6.89,4.61,3.22,2.94,1.88,0,0,-1.67,-3.71,-3.93,-4.23,-4.42,-4.69,-5.18,-6.67,-10.53,-12.31,-19.24,-29.89]
      ],
      "smps" : ["Sub-253","Sub-337","Sub-193","Sub-313","Sub-217","Sub-37","Sub-169","Sub-55","Sub-19","Sub-145","Sub-103","Sub-49","Sub-205","Sub-97","Sub-79","Sub-67","Sub-115","Sub-325","Sub-43","Sub-109","Sub-91","Sub-157","Sub-151","Sub-343","Sub-139","Sub-319","Sub-85","Sub-181","Sub-175","Sub-127","Sub-271","Sub-163","Sub-211","Sub-187","Sub-307","Sub-73","Sub-229","Sub-235","Sub-241","Sub-31","Sub-223","Sub-25","Sub-295","Sub-301","Sub-265","Sub-331","Sub-121","Sub-199","Sub-133","Sub-259","Sub-277","Sub-355","Sub-283","Sub-1","Sub-61"],
      "vars" : ["QoL-Score"]
   }
}
{
   "graphOrientation" : "vertical",
   "graphType" : "Bar",
   "segregateSamplesBy" : ["Treatment"],
   "showLegend" : "false",
   "showSampleNames" : "false",
   "title" : "Waterfall plot changes in QoL scores",
   "xAxisTitle" : "Change from baseline (%) in QoL score"
}
library(canvasXpress)
y=read.table("https://www.canvasxpress.org/data/cX-waterfall-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-waterfall-smp.txt", header=TRUE, sep="\t", quote="", row.names=1, fill=TRUE, check.names=FALSE, stringsAsFactors=FALSE)
canvasXpress(
  data=y,
  smpAnnot=x,
  graphOrientation="vertical",
  graphType="Bar",
  segregateSamplesBy=list("Treatment"),
  showLegend=FALSE,
  showSampleNames=FALSE,
  title="Waterfall plot changes in QoL scores",
  xAxisTitle="Change from baseline (%) in QoL score"
)