File: mean.sci

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scilab 2.4-1
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function y=mean(x,orient)
// Copyright INRIA
[lhs,rhs]=argn(0)
if x==[] then y=%nan;return,end
if rhs==1 then
  y=sum(x)/size(x,'*')
else
  if orient<>'r'&orient<>'c'&orient<>1&orient<>2 then
    error('mean : second argument must be ''r'', ''c'', 1 or 2')
  end
  y=sum(x,orient)/size(x,orient)
end