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Plotting letters instead of symbols

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Alice on 17 Oct 2014
Hi I'm really new to MATLAB and I'm generating images which are a set of 9 letters encased in a rectangle. I can do this with symbols (such as +) but I need to use letters in place of the symbols.
How do I replace the symbols with normal letters?


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Accepted Answer

Star Strider
Star Strider on 17 Oct 2014
You have to use the text function to label your points with letters.
x = randi(10, 1, 5); % Create Data
y = randi(10, 1, 5);
L = strsplit(sprintf('%c\n','A':'E')); % Letter Labels
plot(x, y, '+r')
text(x, y, L(1:length(x)), 'HorizontalAlignment','center', 'VerticalAlignment','bottom')
axis([-0.5 10.5 -0.5 10.5 ])


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Alice on 20 Oct 2014
Is there any way that you can plot just the letters, so they are not labels, but instead of '+' you use 'A'?
Star Strider
Star Strider on 20 Oct 2014
My pleasure!
Just change the plot call to:
plot(x, y)
In that situation, you may also want to change the text call to:
text(x, y, L(1:length(x)), 'HorizontalAlignment','center', 'VerticalAlignment','center')
to plot the letters exactly on top of your data points.
Prasanna Venkatesh
Prasanna Venkatesh on 27 Jun 2019
In recent version, replace 'center' by 'middle' only in 'VerticalAlignment' value in text call.
text(x, y, L(1:length(x)), 'HorizontalAlignment','center', 'VerticalAlignment','middle')

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More Answers (1)

Robert Cumming
Robert Cumming on 17 Oct 2014
The text function allows you to write text on an axes.
help text


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