convert class 'char' to class 'logical' , How?
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I have some binary bits in a string of class 'char':
b= 10001010101010101000000111110000111
I wish to covert class of 'b' from 'char' to 'logical'.
When i use str2num function, it considers all the bits as a single number and returns me
str2num(b)
ans =
1.0001e+034
Which i don't want. i want b as a logical array.
Kindly Help.
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채택된 답변
Mischa Kim
2014년 1월 17일
Try
b_bin = logical(b(:)'-'0')
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Stephen23
2024년 3월 6일
편집: Stephen23
2024년 3월 6일
"Why this is not indicated in the Documentation for 'logical' function?"
It already is: it states at the very top "logical(A) converts A into an array of logical values. Any nonzero element of A is converted to logical 1 (true) and zeros are converted to logical 0 (false)", which is exactly what happens here.
Of course the LOGICAL documentation cannot cover every possible way that you might create the input array (you did not consider that there are many many many many other ways of creating the input array and there is nothing special about this particular way so your proposal would mean including basically a very large subset of the entire MATLAB documentation on every single MATLAB documentation page... such documentation would be truly very large and very difficult to find anything in).
추가 답변 (2개)
William Prophet
2016년 11월 11일
If you want to convert the character array to a logical one, just compare the entire array character by character. So if you have '001011' and you want to return [0 0 1 0 1 1], just do
'001011' == '1'
And then every character in the array is compared to '1'.
Andreas Goser
2014년 1월 17일
Logical can only hold 0 or 1, so 10001010101010101000000111110000111 is not possible. Maybe you want binary numbers?
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