Michael Tobis wrote: > Although somewhat more elegant, Python slices follow Matlab's slice > notation. In simpler cases they are identical. > > mt
I think in Matlab, as in Fortran 90, i:j refers to the elements from i up to and including j, unlike Python, where j is excluded. Another language with slicing is S, implemented in S-Plus and R. It follows the same convention as Fortran. The languages treat negative subscripts of lists and arrays differently. In Fortran, since lower bounds of arrays can be negative, a negative subscript has no special meaning. In S, where arrays start with element 1, a negative subscript means that the absolute value of the subscript is excluded, so that if array x has three elements, x[-2] refers to (x[1],x[3]). In Python, negative indices "wraparound". -- http://mail.python.org/mailman/listinfo/python-list
