[FIXED] Is it possible to capture standard deviation from %%timeit -o?

Issue

I get average time to take running function but cannot get standard deviation.

import random
def average_py(n):
    s = 0
    for i in range(n):
        s += random.random()
    return s / n
n = 10_000_000

result_py = %timeit -o average_py(n)

670 ms ± 2.98 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)

print(result_py.average)

0.6704248709886867

I already checked ipython document.

Solution

It is accessible through result_py.stdev.

In [1]: import random
   ...: def average_py(n):
   ...:     s = 0
   ...:     for i in range(n):
   ...:         s += random.random()
   ...:     return s / n
   ...: n = 10_000_000

In [2]: result_py = %timeit -o average_py(n)
1.37 s ± 40.5 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)

In [3]: result_py.stdev
Out[3]: 0.040515329046983364

Answered By - erip