Lines Matching refs:xs
29 'sum': lambda xs: sum(xs[1:], start=xs[0]),
30 'prod': lambda xs: m.prod(xs[1:], start=xs[0]),
33 'mean': lambda xs: Float(sum(float(x) for x in xs) / len(xs)),
34 'stddev': lambda xs: (
36 m.sqrt(sum((float(x) - mean)**2 for x in xs) / len(xs)))
37 )(sum(float(x) for x in xs) / len(xs)),
38 'gmean': lambda xs: Float(m.prod(float(x) for x in xs)**(1/len(xs))),
39 'gstddev': lambda xs: (
41 m.exp(m.sqrt(sum(m.log(float(x)/gmean)**2 for x in xs) / len(xs)))
43 )(m.prod(float(x) for x in xs)**(1/len(xs))),