Get categories from numeric vector

Question

I have this numeric vector:

vec <- 1:7

How can I transform it into 3 categories using these logical rules:

if(vec >=          


        

Answer 1

I'd recommend cut and its labels variable

cut(vec, c(1, 3, 5, 8), include.lowest = TRUE, labels = paste0("category", 1:3))
# [1] category1 category1 category1 category2 category2 category3 category3
# Levels: category1 category2 category3