[英]Python Pandas - Convert column to percentage on Groupby DF
I have a dataframe that I created by a groupby: 我有一个由groupby创建的数据框:
hmdf = pd.DataFrame(hm01)
new_hm01 = hmdf[['FinancialYear','Month','FirstReceivedDate']]
hm05 = new_hm01.pivot_table(index=['FinancialYear','Month'], aggfunc='count')
vals1 = ['April ', 'May ', 'June ', 'July ', 'August ', 'September', 'October ', 'November ', 'December ', 'January ', 'February ', 'March ']
df_hm = new_hm01.groupby(['Month', 'FinancialYear']).size().unstack(fill_value=0).rename(columns=lambda x: '{}'.format(x))
df_hml = df_hm.reindex(vals1)
The DF looks like this: DF看起来像这样:
FinancialYear 2014/2015 2015/2016 2016/2017 2017/2018
Month
April 34 24 22 20
May 29 26 21 25
June 19 39 22 20
July 23 39 18 20
August 36 30 34 0
September 35 23 41 0
October 36 37 27 0
November 38 31 30 0
December 36 41 23 0
January 34 30 35 0
February 37 26 37 0
March 36 31 33 0
The column names are from variables (threeYr,twoYr,oneYr,Yr)
, and I want to convert the dataframe so that the numbers are percentages of the total for each column, but I cant get it to work. 列名来自变量(threeYr,twoYr,oneYr,Yr)
,我想转换数据帧,以便数字是每列总数的百分比,但我不能让它工作。
This is what I want: 这就是我要的:
FinancialYear 2014/2015 2015/2016 2016/2017 2017/2018
Month
April 9% 6% 6% 24%
May 7% 7% 6% 29%
June 5% 10% 6% 24%
July 6% 10% 5% 24%
August 9% 8% 10% 0%
September 9% 6% 12% 0%
October 9% 10% 8% 0%
November 10% 8% 9% 0%
December 9% 11% 7% 0%
January 9% 8% 10% 0%
February 9% 7% 11% 0%
March 9% 8% 10% 0%
Could anyone help me with doing this? 有人可以帮我这么做吗?
Edit: I tried the response found at this link: pandas convert columns to percentages of the totals ..... I could not get that to work for my dataframe + it does not explain well (to me) how to make it work for any DF. 编辑:我尝试了在这个链接上找到的响应: pandas将列转换为总数的百分比 .....我无法让它为我的数据帧工作+它不能很好地解释(对我来说)如何让它工作任何DF。 The response from John Galt I believe is better than that response (my opinion). 我认为John Galt的反应比回应更好(我的观点)。
Here's one way 这是一种方式
In [1371]: (100. * df / df.sum()).round(0)
Out[1371]:
2014/2015 2015/2016 2016/2017 2017/2018
FinancialYear
April 9.0 6.0 6.0 24.0
May 7.0 7.0 6.0 29.0
June 5.0 10.0 6.0 24.0
July 6.0 10.0 5.0 24.0
August 9.0 8.0 10.0 0.0
September 9.0 6.0 12.0 0.0
October 9.0 10.0 8.0 0.0
November 10.0 8.0 9.0 0.0
December 9.0 11.0 7.0 0.0
January 9.0 8.0 10.0 0.0
February 9.0 7.0 11.0 0.0
March 9.0 8.0 10.0 0.0
And, if you want to rounded to 1 decimal place with value as strings with '%' 并且,如果你想要舍入到1位小数,值为'%'的字符串
In [1375]: (100. * df / df.sum()).round(1).astype(str) + '%'
Out[1375]:
2014/2015 2015/2016 2016/2017 2017/2018
FinancialYear
April 8.7% 6.4% 6.4% 23.5%
May 7.4% 6.9% 6.1% 29.4%
June 4.8% 10.3% 6.4% 23.5%
July 5.9% 10.3% 5.2% 23.5%
August 9.2% 8.0% 9.9% 0.0%
September 8.9% 6.1% 12.0% 0.0%
October 9.2% 9.8% 7.9% 0.0%
November 9.7% 8.2% 8.7% 0.0%
December 9.2% 10.9% 6.7% 0.0%
January 8.7% 8.0% 10.2% 0.0%
February 9.4% 6.9% 10.8% 0.0%
March 9.2% 8.2% 9.6% 0.0%
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