Hi, just a quick question, if I have a matrix has n rows and m columns, how can I cut off the 4 sides of the matrix and return a new matrix? (the new matrix would have n-2 rows m-2 columns).
Thanks in advance
That is fantastically compact! I had only previously seen this done using a tuple of slice(1,-1) objects.
Chris Cameron
2008-12-13 17:21:27
numpy has some really nice ways of handling indexing and slicing. I miss the more advanced slicing features when I use Matlab (esp. the broadcasting features).
Mr Fooz
2008-12-13 21:58:40
+2
A:
A more general answer is:
a[[slice(1, -1) for _ in a.shape]]
J.F. Sebastian
2008-12-14 00:20:57