20")
> Age<-c(18,25,26,35,48,50)
> Gender<-c("M","F","F","M","F","M")
> City<-c("福州","厦门","泉州","龙岩","漳州...NA 45
4 4 03/23/20 35 M 龙岩 65 184 23 8 56 56 25
5 5 03/24/20 48 F 漳州...34 35 NA 45
4 4 03/23/20 35 M 龙岩 65 23 56 56 25
5 5 03/24/20 48 F 漳州...34 35 NA 45
4 4 03/23/20 35 M 龙岩 65 23 56 56 25
5 5 03/24/20 48 F 漳州...34 35 NA 45
4 4 03/23/20 35 M 龙岩 65 23 56 56 25
5 5 03/24/20 48 F 漳州