Calculate Arbitrary Percentile on Pandas GroupBy

Question

Currently there is a median method on the Pandas\'s GroupBy objects.

Is there is a way to calculate an arbitrary percentile (s

Answer 1

I found another useful solution here

If I have to use groupby another approach can be:

def percentile(n):
    def percentile_(x):
        return np.percentile(x, n)
    percentile_.__name__ = 'percentile_%s' % n
    return percentile_

Using the below call, I am able to achieve the same result as the solution given by @TomAugspurger

df.groupby('C').agg([percentile(50), percentile(95)])