Re: [Numpy-discussion] tofile problems

2010-07-29 Thread Paul Probert
On 07/28/2010 11:32 PM, Christopher Barker wrote: > Paul Probert wrote: >> I'm trying to write numpy arrays as binary data, to support a legacy >> file format. So I open a file and write to it: >> >> fp = open('somefile','w') >> ... &g

[Numpy-discussion] tofile problems

2010-07-28 Thread Paul Probert
iff != 0: print 'ahhah! mismatch=',diff ... I'm observing that every once in while I get 'ahhah! mismatch=1', that is, the file position is advanced by one more byte than x.nbytes would give. I'm using 1.4.1 on windows, python 2.5. An

Re: [Numpy-discussion] Indexing in Numpy vs. IDL?

2008-11-17 Thread Paul Probert
array of booleans the same size and shape as data, so you can write your new array as data[ (data > 100.) & (data < 300.) ] Note we don't use a "where" function. In numpy, "where" is a completely different thing than in IDL. If you really wanted to