Hi, there was a thread about this before, diag() is currently only partly useful if you work with numpy-matrices, because the 1d->2d direction doesn't work, as there are no 1d-numpy-matrices. This is unfortunate because a numpy-matrix with shape (n,1) or (1,m) should be naturally treated as a vector, imho. So it would be nice if this could be fixed.
It's probably not the most efficient solution, but what I want for numpy-matrix input x is to get: mat(diag(x.A.squeeze)) where diag is the current implementation. This means that if x is not a vector ("truly 2d"), then nothing is changed. But if one of the dimensions of x is ==1, then it's turned into a 1d-array, and diag works as it should. Does that sound reasonable? Thanks, Sven ------------------------------------------------------------------------- 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