change color of a bar in matlab

You can change the color of a bar in a Matlab bar plot by specifying the color in the 'facecolor' property of the bar object.

Here's an example code:

main.m
% Create sample bar plot
x = 1:5;
y = [4 2 7 1 6];
b = bar(x,y);

% Set color of first bar to red
b(1).FaceColor = 'r';
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In this example, we create a simple bar plot using the bar function with x and y as inputs. Then, we set the color of the first bar to red by accessing its FaceColor property and setting it to 'r'. You can replace 'r' with any other Matlab supported color such as 'g','b', or '#FFA500' etc.