On 7/21/06, Sven Schreiber <[EMAIL PROTECTED]> wrote: > Bill Baxter schrieb: > > > Finally, I noticed that the atleast_nd methods return arrays > > regardless of input type. > > Are you sure? I reported that issue with *stack and I remember it was fixed.
Doh! My bad. You're right. I was looking at the code in SVN for the atleast_* methods and didn't realize that the array constructor (or any constructor) could actually return something besides an object of that class. But that's exactly what array(subok=True) allows. > > SUMMARY: > > * make r_ behave like "vstack plus range literals" > > * make column_stack only transpose its 1d inputs. > > * rename r_,c_ to v_,h_ (or something else) to make their connection > > with vstack and hstack clearer. Maybe vs_ and hs_ would be better? > > * make a new vertsion of 'c_' that acts like column_stack so that > > theres a nice parallel v_<=>vstack, h_<=>hstack, c_<=>column_stack > > * make atleast_*d methods preserve the input type whenever possible > > > > One problem with all that renaming is the other (maybe more important) > function of r_: build (array or) matrix ranges quickly. How would you duplicate this kind of behavior, you mean? >>> r_[1:4,0,4] array([1, 2, 3, 0, 4]) That's what h_ would do. Just as if you had done hstack( (range(1,4),0,4) ). That's actually a good reason for the renaming/retooling. r_ is kind of schitzophrenic now in that it acts *either* as "concatenate rows (vstack-like, for >=2-d)" or "build me a row (hstack-like, for <2d)". So it's hard to remember what the 'r' in r_ stands for. On the other hand, c_ is always hstack-like. By the way, I noticed that 'row_stack' has appeared as a synonym for 'vstack' in SVN. Thanks to whomever added it! --bb ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Numpy-discussion mailing list Numpy-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/numpy-discussion
