Summary: This example shows how to create waterfall charts in F#.
Waterfall charts are special bar charts that help visualizing the cumulative effect of sequentially introduced positive or negative values.
In addition to the x and y values, a
WaterfallMeasure can be passed corresponding to each xy pair (there is also a constructor overload using a tripel of x,y,measure).
By default the values are considered as 'relative'. However; it is possible to use 'total' to compute the sums. Also 'absolute' could be applied to reset the computed total or to declare an initial value where needed.
open Plotly.NET open Plotly.NET.TraceObjects open Plotly.NET.LayoutObjects let waterfall1 = Chart.Waterfall( x = ["Sales"; "Consulting"; "Net revenue"; "Purchases"; "Other expenses"; "Profit before tax"], y = [60; 80; 0; -40; -20; 0], Measure = [ StyleParam.WaterfallMeasure.Relative StyleParam.WaterfallMeasure.Relative StyleParam.WaterfallMeasure.Total StyleParam.WaterfallMeasure.Relative StyleParam.WaterfallMeasure.Relative StyleParam.WaterfallMeasure.Total ] )
Set the orientation argument to
Horizontal to create a horizontal waterfall. Keep in mind to correctly assign x and y values (the vallues are switched on the axes in comparison to the chart example above)
To keep better track of which measure belongs to which datum, use
let waterfall2 = Chart.Waterfall( xymeasures = [ 60 , "Sales" , StyleParam.WaterfallMeasure.Relative 80 , "Consulting" , StyleParam.WaterfallMeasure.Relative 0 , "Net revenue" , StyleParam.WaterfallMeasure.Total -40, "Purchases" , StyleParam.WaterfallMeasure.Relative -20, "Other expenses" , StyleParam.WaterfallMeasure.Relative 0 , "Profit before tax" , StyleParam.WaterfallMeasure.Total ], Orientation = StyleParam.Orientation.Horizontal )