Python 然后每月根据列中的字符串小计计数
我希望每月完成的交易占总交易的百分比。以前,我的数据仅为一个月,由以下人员解决:Python 然后每月根据列中的字符串小计计数,python,pandas,group-by,Python,Pandas,Group By,我希望每月完成的交易占总交易的百分比。以前,我的数据仅为一个月,由以下人员解决: total_trades = df['state'].count() RFQ_Hit_Rate = done_trades / total_trades RFQ_Hit_Rate = round(RFQ_Hit_Rate, 6) 现在有12个月的数据,所以我需要更新代码。新数据 dfHit_Rate_All = df[['Year_Month','state']].copy() dfHit_Rate_All =
total_trades = df['state'].count()
RFQ_Hit_Rate = done_trades / total_trades
RFQ_Hit_Rate = round(RFQ_Hit_Rate, 6)
现在有12个月的数据,所以我需要更新代码。新数据
dfHit_Rate_All = df[['Year_Month','state']].copy()
dfHit_Rate_All = dfHit_Rate_All.groupby(['Year_Month','state']).size().reset_index(name='count')
Year_Month state Counts
2017-11 Customer Reject 1
2017-11 Customer Timeout 2
2017-11 Dealer Reject 3
2017-12 Dealer Timeout 4
2017-12 Done 5
2017-12 Done 6
2018-01 Tied Covered 7
2018-01 Tied Done 8
2018-01 Tied Traded Away 9
2018-02 Traded Away 10
2018-02 Done 11
2018-02 Customer Reject 12
对于每个月,找出总交易、总完成交易并计算比率。注意,任何带有“Done”的字符串都是已完成的交易,即[df['state'].str.contains('Done'):
我认为需要使用元组聚合-使用聚合函数的新列名:
agg = [('Total_state_count_Done',lambda x: x.str.contains('Done').sum()),
('Total_state_count', 'size')]
df = df.groupby('Year_Month')['state'].agg(agg)
对于新列,除以并乘以100
:
df['Done_To_Total_Ratio'] = df['Total_state_count_Done'].div(df['Total_state_count']).mul(100)
print (df)
Total_state_count_Done Total_state_count Done_To_Total_Ratio
Year_Month
2017-11 0 3 0.000000
2017-12 2 3 66.666667
2018-01 1 3 33.333333
2018-02 1 3 33.333333
如果需要将最后一列转换为整数并添加百分比:
df['Done_To_Total_Ratio'] = (df['Total_state_count_Done']
.div(df['Total_state_count'])
.mul(100)
.astype(int)
.astype(str)
.add('%'))
print (df)
Total_state_count_Done Total_state_count Done_To_Total_Ratio
Year_Month
2017-11 0 3 0%
2017-12 2 3 66%
2018-01 1 3 33%
2018-02 1 3 33%
快速提问,如果我想让66%变为66.325%,即3 d.p?请尝试将
.astype(int)
更改为.round(3)
df['Done_To_Total_Ratio'] = (df['Total_state_count_Done']
.div(df['Total_state_count'])
.mul(100)
.astype(int)
.astype(str)
.add('%'))
print (df)
Total_state_count_Done Total_state_count Done_To_Total_Ratio
Year_Month
2017-11 0 3 0%
2017-12 2 3 66%
2018-01 1 3 33%
2018-02 1 3 33%