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Binary string must be 52 bits or less error?

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Sneha P S
Sneha P S 2018-3-21
回答： Walter Roberson 2018-3-21
I had some values in RRbin of size 65536 x 36 and type double.Then i xor-ed them with sybin(65536 x 36 double) The result of xor operation is stored in encR(65536 x 36 logical). I need to convert the result in encR back to decimal. But when iam trying to use bin2dec(encR) there comes an error that the input must be a string. So i converted the encR to string using num2str(encR) function. The output is of form 65536 x 106 char. Please help me with this 65536 x 106 char. I didnt get it. At the same time i couldnt convert it to decimal as the error "Error using bin2dec (line 35) Binary string must be 52 bits or less." occurs. Please help me to sort it out.
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James Tursa
James Tursa 2018-3-21
Please show one small example of the input(s), the intermediate steps, and the desired output.
Sneha P S
Sneha P S 2018-3-21
编辑：Walter Roberson 2018-3-21
RRbin = 0 0 0 0 0 0 0 0 0 0 1 1 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (double)
sybin = 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 0 0 0 0 0 0 (double)
encR = 0 0 0 0 0 0 0 0 0 0 1 1 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (logical)
while converting it to string the output is
0 0 0 0 0 0 0 0 0 0 1 1 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
but of type char and size 1 x 106. I need to convert this back to decimal.

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回答（1 个）

Walter Roberson
Walter Roberson 2018-3-21
values = bin2dec(char('0' + encR))
or
values = sum(bsxfun(@times, encR, 2.^(35:-1:0)),2)

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