I'm really impressed that this version of the code works: Here I'm using
'find_first', passing it a lambda expression
as the 2nd argument:
import numpy as np
#pythran export empirical(float[:], float, float)
def empirical(ds, alpha, x):
sds = np.sort(ds)
ds_to_the_alpha = sds**alpha
fractions = ds_to_the_alpha / sum (ds_to_the_alpha)
thresholds = np.cumsum(fractions)
i = find_first (thresholds, lambda u: x < u)
#i = np.searchsorted (thresholds, x)
return i, thresholds, fractions
#pthran export find_first(float[:], bool (float))
def find_first (seq, pred):
for i,x in enumerate (seq):
if pred(x):
return i
return None
