How to group a numeric variable in r?

Question

I have the data that has numeric variable A. I want to make groups for A to have something like B.

data <- structure(list(A = c(0, 0, 0, 0, 1, 2, 9, 15, 30, 100, 0.2, 0.003, 
95, 18), B = c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 4L, 10L, 1L, 1L, 
10L, 2L)), class = "data.frame", row.names = c(NA, -14L))

Could you give an example of your expected output? a sketch or another dataframe would be fine. Do you want an additional variable which is a grouping variable for `A`? — Peter, Jul 08 '20 at 16:13

score 2 · Answer 1 · answered Jul 08 '20 at 16:18

2

Are you trying to create B from A? it looks like you want something like

data$A %/% 10
[1]  0  0  0  0  0  0  0  1  3 10  0  0  9  1

or

(data$A %/% 10)+1 
[1]  1  1  1  1  1  1  1  2  4 11  1  1 10  2

answered Jul 08 '20 at 16:18

Daniel O

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20

can I customize the ranges? for example telling R that (0-10 = 1), (11-20 = 2 ) and so on? – mustafa Jul 08 '20 at 16:36

How to group a numeric variable in r?

1 Answers1