error code on cumsum
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I am attempting to run: A = 1 - cumsum(C)/sum(C); where C is a long column vector. I receive error "??? Error using ==> cumsum CUMSUM is not supported for integer input." What does it mean?
2 Comments
per isakson
on 23 Feb 2014
Edited: per isakson
on 23 Feb 2014
The code looks ok. Make this check
which cumsum -all
what does it say? And what does
class( C )
say? And which Matlab release do you use?
Accepted Answer
Image Analyst
on 23 Feb 2014
Edited: Image Analyst
on 23 Feb 2014
Try this. It works for me:
C = int32(randi(9, 1, 10)) % Array of integers.
A = 1 - cumsum(C) / sum(C)
3 Comments
Image Analyst
on 23 Feb 2014
Yes, MATLAB has an unintuitive of promoting/casting variable types. If C is double, it's fine. Regardless I can't find a way to duplicate the error the Ralph posted. Perhaps he can give some code that illustrates the error.
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