On Mon, 19 Mar 2001, Aureli Soria Frisch wrote: [...]
I have a N-dimensional array A and I want to operate in one of the axis (k) with a 1 dimensional array (for instance, subtracting an array B of length k). I have looked for some solutions in the manual and did not found any. [...] Is there any more elegant solution? The key point is: how to operate a N-D array with a 1D in one determined axis?
I'm not sure I understand exactly what you want. Are you sure you don't want to do A[n1,n2,...,:,...,nN] instead? (the '...'s are just an indication of where the extra numbers would go, not the literal Numeric syntax. If so, you can use s = slice(None) # n is your list [n1, n2, n3, ..., n(k-1), n(k+1), ...,nN] n.insert(k, s) print "answer is", A[n] - B print slice.__doc__ (possibly there is an off-by-one error in the above, but you get the idea) John