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Plotting letters instead of symbols

62 vues (au cours des 30 derniers jours)
Alice
Alice le 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?
Thanks

Réponse acceptée

Star Strider
Star Strider le 17 Oct 2014
You have to use the text function to label your points with letters.
Example:
x = randi(10, 1, 5); % Create Data
y = randi(10, 1, 5);
L = strsplit(sprintf('%c\n','A':'E')); % Letter Labels
figure(1)
plot(x, y, '+r')
text(x, y, L(1:length(x)), 'HorizontalAlignment','center', 'VerticalAlignment','bottom')
axis([-0.5 10.5 -0.5 10.5 ])
  4 commentaires
Star Strider
Star Strider le 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 le 27 Juin 2019
Update:
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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Plus de réponses (1)

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