beliavsky at aol.com beliavsky at aol.com
Fri Jan 21 11:41:51 EST 2005

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Yun Mao wrote:
>Thanks for the help. numarray doesn't provide what I look for either.
e.g.
>a = array( [[1,2,3],[4,5,6]] )
>I sometimes what this:  a[ [1,0], :],  or even
>a[ [1,0], [0,1] ] , which should give me
>[[4, 5], [1,2]]

I think Fortran 90 and 95 have the array slicing you want. For example,
if

imat =
11    12    13
21    22    23

then imat([2,1,2],:)) =
21    22    23
11    12    13
21    22    23

and imat([2,1,2],[1,3]) =
21    23
11    13
21    23

Like Matlab, Fortran arrays by default start with 1, and x(i:j) gives a
slice of elements including x(j). There are free compilers g95 (in
beta) and gfortran (in alpha).

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