Hi Pierre and others, On Monday 25 June 2007 15:37, Pierre GM wrote: > On Monday 25 June 2007 05:12:01 Jesper Larsen wrote: > > myarray.mask[i] = True > > Mmh. Experience shows that directly accessing the mask can lead to bad > surprises. To mask a series of values in an array, the easiest (and > recommended method) is > > myarray[i] = masked
I was not aware that the way to use masked arrays was as you describe. I thought you had to somehow modify the mask (but the method you describe is of course much more elegant). Thanks for answering my very basic question. > A side issue is the kind of implementation of masked arrays you want. There > are currently two, one directly accessible through numpy.core.ma, another > available in the sandbox of the scipy svn site, as maskedarray. This latter > considers MaskedArray as a subclass of ndarray, which makes it easier to > define subclasses. Moreover, it gives access to soft/hard masks, masked > records, more stats functions, and thanks to Eric Firing, can be used > directly with matplotlib... I'd be quite happy if you could give it a try > and send me your feedback. No, no, I don't want that kind of implementation - I just want to figure out how the current implementation works:-) When I get some more experience in using masked arrays and require some of the functionality that you describe I will give it a try. - Jesper _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
