Matrix consist of letters

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Cillian
Cillian 2012-5-10
Hello.
I really want to know if it is possible to fill a matrix with x,y and z.
Here is my attempt so far:
>> X=zeros(3,10)
X =
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
>> X(1,:)=[1 :10]
X =
1 2 3 4 5 6 7 8 9 10
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
I have succeed to fill the first row with number, from 1 to 10. But, what if I want to fill the first rows with only letters, just 'x' in the first row, is that possible?
I would be very happy if someone can help me and answer on my question.
Best Regards
Cillian
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Oleg Komarov
Oleg Komarov 2012-5-10
What you have is a matrix of doubles. Letters would be chars and you cannot mix them together unless you use cell arrays.
Before showing how would you go about with a cell array, what do you need this type of "matrix" for?

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Daniel Shub
Daniel Shub 2012-5-10
Do you want something like this
X = [repmat('x', 1, 10); repmat('y', 1, 10); repmat('z', 1, 10)]
Or maybe this makes more sense
X = zeros(3,10);
X(2, :) = 1;
X(3, :) = 2;
X = char(X+120)
basically the characters "x", "y", and "z" have values of 120, 121, and 122.
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Cillian
Cillian 2012-5-10
Thanks, Daniel. That was exactly what I looking for.

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