> Here's one way you could do it: > > In [43]: indices = [0,1,2,3,5,7,8,9,10,12,13,14] > > In [44]: jumps = where(diff(indices) != 1)[0] + 1 > > In [45]: starts = hstack((0, jumps)) > > In [46]: ends = hstack((jumps, len(indices))) > > In [47]: slices = [slice(start, end) for start, end in zip(starts, ends)] > > In [48]: slices > Out[48]: [slice(0, 4, None), slice(4, 5, None), slice(5, 9, None), slice(9, > 12, None)]
If you're only going to use the slices to divide up the list, you could use numpy.split and skip creating the slice objects: indices = [0,1,2,3,5,7,8,9,10,12,13,14] jumps = numpy.where(numpy.diff(indices) != 1)[0] + 1 numpy.split(indices, jumps) giving: [array([0, 1, 2, 3]), array([5]), array([ 7, 8, 9, 10]), array([12, 13, 14])] Zach (btw, Warren, the method to calculate the jumps is cute. I'll have to remember that.) _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion