numpy np -знаком изменения в DF Pandas Zero Crossing
> zero_crossings
array([ 3, 5, 9, 10, 11, 12, 15])
DS in Training
> zero_crossings
array([ 3, 5, 9, 10, 11, 12, 15])import numpy
a = [1, 2, 1, 1, -3, -4, 7, 8, 9, 10, -2, 1, -3, 5, 6, 7, -10]
zero_crossings = numpy.where(numpy.diff(numpy.sign(a)))[0]