I want to get the number of rows in doulble matrix but kept recieve an error
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I have varible W1 type double and size 20x5
I workspace the varible looks like
Name Value
W1 20x5
I can know the number of row by pressing length command but does not work with size command and shows an error any help please
With lenghth command
length(W1)
ans =
20
The tpye of the variable
class(W1)
ans =
double
But with size does not work
size(W1)
Subscript indices must either be real positive integers or logicals.
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採用された回答
Walter Roberson
2016 年 7 月 12 日
You assigned something to a variable named size, so you will not be able to call the size() function until the variable size goes out of scope.
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