MATLAB Answers

App With Bar Graph

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kileigh palmer
kileigh palmer on 12 Mar 2021
Answered: Monisha Nalluru on 16 Mar 2021
Hello! I can manage to get my data values to plot correctly on the app, but I just want to change to color of the bars. This is the script I tried running with the color change, where I tried using the Cdata to get different colored bars. Any help is appreciated!!
function UIAxesButtonDown(app, event)
bf = app.BodyFatEditField.Value;
Dmax = app.DiameterMaxEditField.Value;
Dmin = app.DiameterMinEditField.Value;
Psys = app.SystolicPressureEditField.Value*0.0013;
Pdia = app.DiastolicPressureEditField.Value*0.0013;
Pdrop = Psys-Pdia;
Ddrop = Dmax-Dmin;
EM = (Pdrop*Dmax)/Ddrop;
patients = [1 2 3 4 5];
bodyfat = .10;
bodyfatc = .22;
bodyfatl = .42;
bodyfath = .67;
EMc = 0.4025;
EMh = 0.3248;
EMk = 0.3177;
EMl = 0.488;
bf = [bodyfat bodyfath bodyfatc bodyfatl app.BodyFatEditField.Value; EMk EMh EMc EMl EM];
bar(app.UIAxes, patients,bf, 'FaceColor', 'flat')
b.Cdata = [0 .5 .5; .5 0 .8];

Answers (1)

Monisha Nalluru
Monisha Nalluru on 16 Mar 2021
From my understanding, you want to add color to bars in bar plot.
This can be achieved using CData in with bar plot function
Refer to the following documentation:
As an example
function ButtonPushed(app, event)
y = [1 3 5; 3 2 7];
b = bar(y,'Parent',app.UIAxes,"FaceColor",'flat');
b(1).CData = [0 .5 .5];
b(2).CData = [.5 0 .8];
end

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