separating strings one by one

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Valeria Chacon
Valeria Chacon 2016-10-26
评论： Star Strider 2016-10-26
N=length(str);
count=1;
for k=1:N
x=str2double(str(k));
if isnan(x)==0
str(count)=x(k);
count=count+1;
disp(x);
end
end
This is currently the code I have right now but it keeps giving me an error because the "index exceeds matrix dimensions on the line: str(count)=x(k); What am I doing wrong?

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Star Strider
Star Strider 2016-10-26
your ‘x’ variable is a scalar, by definition a (1x1) ‘array’. So ‘x(k)’ is only valid for x=1.
This will likely eliminate that error:
str(count)=x;
  2 个评论
Valeria Chacon
Valeria Chacon 2016-10-26
is there any way that I can call for the 4th and 8th number of this code??? like if my result after it is:1256893490 then how can I pull out the 4th and 8th number of it? Thank you!
Star Strider
Star Strider 2016-10-26
My pleasure!
I don’t know what ‘str’ is.
I assume that you would address them as:
str(4)
str(8)
respectively.
You can assign them as separate variables, but it is best to simply refer to them as elements of the vector.

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