Nested if-else loops in R

Question

I have a data frame named \"crimes\" which contains a \"pre_rate\" column that denotes the crime rate before a certain law is implemented. I would like to put each rate in a

Answer 1

Instead of nesting ifelse statements might I recommend using case_when. It is a bit easier to read/follow. But as @Marius mentioned your problem is the && instead of using &.

library(tidyverse)
crimes <- data.frame(pre_rate = c(0.27, 1.91, 2.81, 3.21, 4.80))

crimes %>% 
  mutate(rate_category = case_when(pre_rate > 0.26 & pre_rate < 0.87 ~ 1,
                                   pre_rate > 1.04 & pre_rate < 1.94 ~ 2,
                                   pre_rate > 2.03 & pre_rate < 2.96 ~ 3,
                                   pre_rate > 3.10 & pre_rate < 3.82 ~ 4,
                                   pre_rate > 4.20 & pre_rate < 11.00 ~ 5))