[Numpy-discussion] finding longest contiguous array slices

2011-05-21 Thread Ben Elliston
Hi all. I have a 3-d array of booleans (5 x 5 x 1000, say) and would like to return a 5 x 5 of array slices containing the longest contiguous sequence of True values along the z axis. Any tricks that I am missing that will make this easy? Thanks, Ben _

[Numpy-discussion] mapping a function to a masked array

2011-01-12 Thread Ben Elliston
I have a masked array of values that I would like to transform through a user-defined function. Naturally, I want to ignore any values that are masked in the initial array. The user-defined function examines other points around the value in question, so I need to use ndenumerate (or similar) to g