Recent questions tagged Pandas

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pandas - getting a value from the groupby column while using count on another column

I'm trying to get the ID of occurrence counts below 20, any ideas? df.groupby(['ID']).occurrence.count() I tried adding a new column as the count but all values are NaN Thanks...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pandas 如何新增列？

脚本： import pandas df = pandas.DataFrame([dict( id=1001, province='河南', city='郑州', amount=100, ), dict( id=1002, province='河南', city='安 ... 售河北保定 200 省市销售河南郑州 100 省市销售河南安阳 100...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

954 views

1 answer

pandas 如何新增列？

脚本： import pandas df = pandas.DataFrame([dict( id=1001, province='河南', city='郑州', amount=100, ), dict( id=1002, province='河南', city='安 ... 售河北保定 200 省市销售河南郑州 100 省市销售河南安阳 100...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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