A Divendres 06 Octubre 2006 15:30, Vikalpa Jetly va escriure: > avoid the memory error. Related question is that I need to test for > multiple conditions on the same array and set values to 1 or 0. I see that > statements like b[a>200 or a<50] = 1 do not work. So is the way to do this > simply to run a separate statement in the form b[condition]= 1 for each > test?
For this, you have to use the binary operators instead of logical ones. For example: In [43]: a=numpy.arange(10) In [44]: b=numpy.arange(10) In [45]: b[(a < 2) | (a > 8)] = 1 In [46]: b Out[46]: array([1, 1, 2, 3, 4, 5, 6, 7, 8, 1]) [be sure to use parentesizes appropriately] Cheers, -- >0,0< Francesc Altet http://www.carabos.com/ V V Cárabos Coop. V. Enjoy Data "-" ------------------------------------------------------------------------- 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
