Plotting letters instead of symbols

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

Answer 1

[Star Strider]

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 ])

[Alice]

Thank you!

[Alice]

Is there any way that you can plot just the letters, so they are not labels, but instead of '+' you use 'A'?

[Star Strider]

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]

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')

Answer 2

[Robert Cumming]

The text function allows you to write text on an axes.

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