MATLAB: How to compare two columns at the bar chart

bar chart

I would like add this dotted line to the bar chart (MATLAB 2016a)

Best Answer

Here's a demo to get you started.

clf()
h = bar([210, 140, 175, 160]); 
set(gca,'xtick',1:4,'xticklabel',{'A','B','C','D'})
hold on
% Get height of each bar
y = h.YData; 
% draw horizontal line between B and D with a height
% equal to the tallest bar between them. 
xLine = [2,4]; % draw line between bars centered at 2 and 4
halfWidth = 0.4; %estimate of 1/2 the width of the bars
maxHeight = max(y(xLine(1):xLine(2))); 
plot(xLine + halfWidth*[-1,1], maxHeight * [1,1], ':','LineWidth',3, 'color', [1 0.64 0]) %orange
% draw horizontal line between A and D...
xLine = [1,4];  % draw line between bars centered at 1 and 4
maxHeight = max(y(xLine(1):xLine(2))); 
plot(xLine + halfWidth*[-1,1], maxHeight * [1,1], 'g:','LineWidth',3)
% Draw vertical line at bar B, right edge
xLine = 2; % index of bar where vertical line will be drawn along right edge
plot(xLine+halfWidth * [1,1], [y(xLine), max(y)], 'r:','LineWidth',3)

Related Solutions

MATLAB: How to change the width of bar chart?

Use the 'BarWidth' option to give the fraction of width the bars are:

barWidth = handles.slider1.Value; % Get slider value.  Must be between 0 and 1
% Now call bar() with the width passed in
bar(x, y, 'BarWidth', barWidth);

MATLAB: How to explicitly change the colors of the bars in a stacked bar graph

You can use the Color Data (CData) property for bar graph released in R2017b.

You can change the color for a particular bar by setting the FaceColor property to 'flat'. Then, change the corresponding row in the CData matrix to the new RGB triplet. Here is the link for the CData property in bar graph:

https://www.mathworks.com/help/matlab/ref/bar.html#input_argument_namevalue_d119e63137

For example,

a = [1,3,6;2,5,6;8,2,1];
H=bar(a, 'stacked');
colorSet = [];
for i = 1:3
    myColors = round(rand(3,3),1);
    colorSet = [colorSet myColors];
    H(i).FaceColor = 'flat';
    H(i).CData = myColors;
 end
This will display the stacked bar plot with different colors.

Best Answer

Related Solutions

MATLAB: How to change the width of bar chart?

MATLAB: How to explicitly change the colors of the bars in a stacked bar graph

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