I would like to create a new variable, "category" = 1, and others (sex=0, group=1,2) as 0 if Sex is 1 and group is 3.Please let me know.
df<-data.frame(
ID=1:4, age=c(43,62,54,55), sex=c(0,1,1,0), group=c(1,2,3,3)
BP = c (120, 130, 132, 110), BMI = c (21, 26, 23, 19))
2022-10-22 09:13