[Numpy-discussion] unique 2d arrays
Peter Schmidtke
pschmidtke at mmb.pcb.ub.es
Tue Sep 21 02:55:35 EDT 2010
Dear all,
I'd like to know if there is a pythonic / numpy way of retrieving unique
lines of a 2d numpy array.
In a way I have this :
[[409 152]
[409 152]
[409 152]
[409 152]
[409 152]
[409 152]
[409 152]
[409 152]
[409 152]
[409 152]
[409 152]
[426 193]
[431 129]]
And I'd like to get this :
[[409 152]
[426 193]
[431 129]]
How can I do this without workarounds like string concatenation or such
things? Numpy.unique flattens the whole array so it's not really of use
here.
Cheers.
-- Peter Schmidtke
PhD Student
Dept. Physical Chemistry
Faculty of Pharmacy
University of Barcelona
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