小编abs*_*nty的帖子

合并时我做错了什么,我无法理解它是什么.我已经完成以下工作来估计一系列整数值的直方图:

import pandas as pnd
import numpy  as np

series = pnd.Series(np.random.poisson(5, size = 100))
tmp  = {"series" : series, "count" : np.ones(len(series))}
hist = pnd.DataFrame(tmp).groupby("series").sum()
freq = (hist / hist.sum()).rename(columns = {"count" : "freq"})

如果我打印hist,freq这就是我得到的:

> print hist
        count
series       
0           2
1           4
2          13
3          15
4          12
5          16
6          18
7           7
8           8
9           3
10          1
11          1

> print freq 
        freq
series      
0       0.02
1       0.04
2       0.13 …