Problem with the mean function

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Mr LE
Mr LE 2015-1-31
评论： Star Strider 2015-1-31
Hi,
I have a problem with the mean function. I want to have the mean of a matrix A (129x1)
but the function : c= mean (A) doesn't work.
How could I solve this Problem ?
  2 个评论
David Young
David Young 2015-1-31
Do you get an error message, or is the value of c not what you expect?
Mr LE
Mr LE 2015-1-31
The error message is:
Undefined function 'sum' for input arguments of type 'cell'.
Error in mean (line 82) y = sum(x,dim,flag)/size(x,dim);
Error in Devoir1vo (line 16) c= mean (A)

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Star Strider
Star Strider 2015-1-31
编辑：Star Strider 2015-1-31
In the Command Window, type:
which mean -all
I suspect it will result with the first line being:
mean is a variable.
If it does, you will have to rename whatever your ‘mean’ variable is. (This is the most common problem when built-in functions abruptly fail to work correctly.)
EDIT —
You didn’t mention that ‘A’ was a cell. You can convert it easily to a double array by using the ‘{:}’ notation:
A = {rand(10,1)};
c = mean(A{:});
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