> Em Dom, 2007-03-25 às 13:07 -0400, Alan G Isaac escreveu: >> >>> x[1] >> matrix([[1, 0]]) >> feels wrong. (Similarly when iterating across rows.)
On Sun, 25 Mar 2007, Paulo Jose da Silva e Silva apparently wrote: > I think the point here is that if you are using matrices, > then all you "should" want are matrices, just like in > MATLAB: > >> b = A(1, :) > b = > 1 2 Yes, that is the idea behind this, which I am also accustomed to from GAUSS. But note again that the Matlab equivalent :: >>> x=N.mat('1 2;3 4') >>> x[0,:] matrix([[1, 2]]) does provide this behavior. The question I am raising is a design question and is I think really not addressed by the rule of thumb you offer. Specifically, that rule of thumb if it is indeed the justification of :: >>> x[1] matrix([[3, 4]]) finds itself in basic conflict with the idea that I ought to be able to iterate over the objects in an iterable container. I mean really, does this not "feel" wrong? :: >>> for item in x: print item.__repr__() ... matrix([[1, 2]]) matrix([[3, 4]]) Cheers, Alan Isaac _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion