def lsterr(inlist):
    return stdev(inlist) / float(math.sqrt(len(inlist)))
Returns a list consisting of the cumulative sum of the items in the
dataset/ETHPy150Open radlab/sparrow/src/main/python/third_party/stats.py/lsterr--crossover with--dataset/ETHPy150Open radlab/sparrow/src/main/python/third_party/stats.py/lcumsum