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Asked: 2026-05-25T16:40:45+00:00

Please Consider : dalist = {{901, 503, 522, 1305}, {910, 512, 477, 1260}, {847,

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Please Consider :

 dalist = {{901, 503, 522, 1305}, {910, 512, 477, 1260}, 
           {847, 459, 556, 1275}, {799, 517, 527, 1197}}

 cogColors = {RGBColor[0, 0, 1], RGBColor[1, 0, 0], RGBColor[0, 1, 0], RGBColor[1, 1, 0]}

 BarChart[dalist, ChartStyle -> cogColors]

enter image description here

I don`t understand how to assign color to list and to value within the list.

Here my hope is to get each sublist ( first one being : {901, 503, 522, 1305}) assigned one color (Part[[]] of cogColors). Then each bar would be a darker/lighter but similar color. Below is the desired output (ppt) :

enter image description here

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1 Answer

  1. Editorial Team
    BarChart[dalist, ChartStyle -> {cogColors, Opacity /@ {0.4, 0.6, 0.8, 1}}]

    enter image description here

    The crux lies in the following sentence in the doc page of ChartStyle:

    With the form ChartStyle->{spec_1, spec_2, …}, the i, j, … element in a nested list of
    datasets has a style given by applying spec_1[[i]], then
    spec_2[[j]], etc.

    This means you have to find directives that have cumulative effects. The combination of Opacity and colors has this. If you combine various colors you end up with the last one.

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