detect mountainbike course

import numpy as np

def window(slope, size=20):
	std=[0]*round(len(slope)/(size))
	p = 0
	for i in range(0, len(slope)-size, size):
		k=[0]*(size+1)
		for t in (0, size):
			k[t] = slope[i+t]
		std[p] = np.max(k) - np.min(k)
		print(np.max(k), np.min(k), std[p] )
		p = p + 1
	return std

windowSlope = np.array(window(GC.series(GC.SERIES_SLOPE),50))
print(np.std(windowSlope))