Using lapply to create new columns based on old columns

Question

My data looks as follows:

DF <- structure(list(No_Adjusted_Gross_Income = c(183454, 241199, 249506
), NoR_from_1_to_5000 = c(1035373, 4272260, 1124098), NoR_f         


        

Answer 1

you can use apply to get your values, then use cbind if you want to combine with your original DF

t(apply(DF[,2:3],1, function(x) x*val ))

 NoR_from_1_to_5000 NoR_from_5000_to_10000
[1,]         2588950187             2396550000
[2,]        10682786130            36195315000
[3,]         2810807049            14698995000