[Numpy-discussion] Expanding an array by assignment

Darren Dale wrote:

Has Numeric or numarray considered allowing assignment to invalid indices? I sometimes miss being able to do this: a=zeros(2) a[1:0]=1

in order to get this: [[0,0], [1,0]]

I guess it is not consistent with the list operations in python, but it is a really handy shortcut for constructing arrays interactively.

I'm not sure what you meant by this. Did you mean being able to expand an array only by assignment? i.e. a = zeros(2) a (2,1) array a[1,0] = 1 (resizes a behind the scenes to a 2x2 array and then sets the 1,0 element)? MATLAB does display this behavior. I'm not sure how difficult it would be to support it or if it would be worth it or not. What does IDL do? -Travis