> Hi, > > would like to identify unique pairs of numbers in two arrays o in one > bi-dimensional array, and count the observation > > a_clean=array([4,4,5,4,4,4]) > b_clean=array([3,5,4,4,3,4]) > > and obtain > (4,3,2) > (4,5,1) > (5,4,1) > (4,4,2) > > I solved with tow loops but off course there will be a faster solution. > > I was checking also > > for np.unique but i did not find how to apply for a bi-dimensional array. > or > Concatenate the two arrays > a_concatenate=array([4_3,4_5,5_4,4_4,4_3,4_4]), then np.unique, then > split again. > > Any other/faster solutions? > In bash I usually unique command > Thanks in advance
I'd try np.histogram2d, but probably only because I don't know np.unique. A. _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
