Cell2mat conversion
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harjan
am 7 Mär. 2012
Kommentiert: harjan
am 5 Okt. 2013
Hi, I have one cell with 256X10 string values...If I want to convert it to matrix of size 256X10(using cell2mat) it contains full of strings....I can't access the matrix elements like matrix(4,5)... How to convert the cell of strings to matrix....Please post your ideas...
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Akzeptierte Antwort
Andrei Bobrov
am 7 Mär. 2012
C ={['QRSTUVWXYZ'
'[\]^_`abcd'
'efghijklmn'
'opqrstuvwx']}
out = C{1}(4,5)
ADD
on Harjan's comments
C ={['QRSTUVWXYZ'
'[\]^_`abcd'
'efghijklmn'
'opqrstuvwx']};
C = repmat(C,4,4)
out = C{1,2}(1,1:10)
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Weitere Antworten (2)
Walter Roberson
am 7 Mär. 2012
When you say 256x10 do you mean 256 entries each of which is exactly 10 characters long? And you want to convert to a matrix so as to access the individual characters?
If so, then instead of using cell2mat() use char()
3 Kommentare
Walter Roberson
am 7 Mär. 2012
Looking at what you have said you want to do, I do not see any reason why you would want to convert the cell array to a matrix.
It appears to me that you just want to take portions of the cell array as a group. You would do that in the way I showed in Andrei's answer: C(i,1:10) would extract down to a 1 x 10 cell array, and you could then access the individual strings if you want to.
Hyetan Lee
am 7 Mär. 2012
hi harjan.
So, your data type is string now, and it is in the cell matrix(256x10). Am I right?
Then, you can't access it like a variable.
Try this.
------------------------------------------------
test_str = [{'1'} {'2'} {'3'}; {'4'} {'5'} {'6'}; {'7'} {'8'} {'9'}];
% test_str is cell(3x3) matrix with string 1~9
test_char = char(test_str);
% convert to character array first
test_var = str2num(test_char);
% convert to number now
------------------------------------------------
I hope it can help you.
The point is, it's not a cell but string.
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