Convert String to Numerical Matrix
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Hi there,
Just wondering how to convert some matrix string (such as A = '[1,2,3,4,5]') into a numerical matrix (like [1,2,3,4,5]) so that it displays when entered into matlab like,
ans =
1 2 3 4 5
instead of
Columns 1 through 5
1.0000 2.0000 3.0000 4.0000 5.0000
Cheers,
Samuel
采纳的回答
madhan ravi
2020-10-10
编辑：madhan ravi
2020-10-10
Normally str2num() is not suggested:
Wanted = sscanf(A(2:end-1), '%d').' % edited after sir Walter’s comment to exclude []
5 个评论
Walter Roberson
2020-10-10
The [] and comma interfere with sscanf unless you program for them
A = '[1,2,3,4,5]'; sscanf(A(2:end-1), '%d,')
madhan ravi
2020-10-10
Ah, thank you sir Walter, I just typed straight away.
Samuel Lee
2020-10-10
A = '[1 0.2 0.4 0.5 0.6]'; sscanf(A(2:end-1), '%f')
If the problem is that you might have commas or might not then:
A = '[1 0.2, 0.4, 0.5 0.6]'; sscanf(A(2:end-1), '%f%*[, ]')
Samuel Lee
2020-10-10
更多回答（1 个）
Ameer Hamza
2020-10-10
编辑：Ameer Hamza
2020-10-10
A = '[1,2,3,4,5]';
A = str2num(A);
Result
>> A
A =
1 2 3 4 5
A = '[1,2,3,4,5]';
A = eval(A);
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