Pandas.. 分位数 function 需要排序数据来计算百分位数吗？

Question

I'm using Pandas to clean up some data and do basic statistics. I am wondering if quantile() does sort the values before the calculation or i must do the sorting beforehand?

For example, here I'm trying to get the 50th percentile of the number of workers in each company

Percentile50th = Y2015_df.groupby (["company"])["worker"].quantile(0.50)

I'm asking because when I was verifying the values I got with the results in MS Excel, I discovered that Median function requires the data to be sorted in order to get the right median. But I'm not sure if its the case in Pandas.

Answer 1

You do not need to sort. See the link in my previous comment. Example