Age我需要按在數(shù)據(jù)框上替換的某些年齡組對(duì)它們進(jìn)行分組，而不是使用數(shù)字import pandas as pd# intialise data of lists. data = {'Name':['Tom', 'nick', 'krish', 'jack','Ann','James'], 'Age':[20, 21, 45, 58,34,60]} # Create DataFrame df = pd.DataFrame(data)這是我試過(guò)的：if df['Age'] < 20: df['Age']= df['Age'].replace([<20],'<20')if df['Age'] >= 20 & >40: df['Age']= df['Age'].replace([>=20&<40],'>=20&<40')if df['Age'] >=40: df['Age']= df['Age'].replace([>=40],'>=40')
1 回答
慕后森
TA貢獻(xiàn)1802條經(jīng)驗(yàn) 獲得超5個(gè)贊
使用np.select(setofconditions, matchingchoices)
import numpy as np
c1=df['Age'] < 20
c2=df['Age'].between(20,40)
c3=df['Age'] >=40
cond=[c1,c2,c3]
choice=['<20','>=20&<40','>=40']
df['agerange']=np.select(cond,choice)
Name Age agerange
0 Tom 20 >=20&<40
1 nick 21 >=20&<40
2 krish 45 >=40
3 jack 58 >=40
4 Ann 34 >=20&<40
5 James 60 >=40
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