Working with character matrices

2012 2 19
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Hi everyone,
I am trying to put together a matrix that incorporates both numbers and letters. This matrix needs to be able to have basic row and column switching operations done on it.
This is the matrix that I would like to use: [1,a,b,c; d,1,e,f; r,s,1,t;u,v,w,1] How would I input this into Matlab?
Thanks in advance!

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回答（2 个）

Image Analyst
Image Analyst 2012-2-19

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As long as you have just single characters, you can simply put single quotes around each character:
myString = ['1','a','b','c'; 'd','1','e','f'; 'r','s','1','t';'u','v','w','1'];
If there will be different lengths, then you will need to use a cell array.
Walter Roberson
Walter Roberson 2012-2-19

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You cannot mix numbers and letters in any kind of numeric MATLAB array. The only kind of array that can handle it is a cell array.

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Dmytri
Dmytri 2012-2-19
In a cell array can you multiply it by an identity matrix or are operations on cells not allowed?
Jan
Jan 2012-2-19
You cannot apply mathematical operation on cells. This would not make sense at all: While I can imagine what 1*1 is, 1*'a' is valid in Matlab, but has a limited sense only.
Perhaps you want to work with symbolical values, where 'a' represents a variable?

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Dmytri
Dmytri
2012-2-19

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