convert char to double

var = '0' (this is char)
and i want this value convert 'double'
so i used
out = str2double(regexp(var,'\d*','match')
But I have a parse error
How can I get the val value in double?
For reference, if str2double is used, the NAN value is obtained.

1 个评论

var = '0'; % v missing parenthesis
out = str2double(regexp(var,'\d*','match'))
out = 0
out = str2double(var)
out = 0

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回答(1 个)

var = '0';
out = str2double(var)
out = 0
whos out
Name Size Bytes Class Attributes out 1x1 8 double
No need to use regular expressions at all, at least in Matlab.

3 个评论

If I do this, I get a nan value, not a zero. I don't think it's properly converted to double .....
What you see in my answer is obtained running Matlab R2022b.
What version do you use?
i'm using Matlab R2022b too..
Actually, I'm getting this data from another place, but isn't the char value correct if it pops up like this?......

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