How do I create group data in a category with more than and less than in R?

Question

I have a data set and I would like to group them in a category... But I would like the category to be more than and less than a certain number?

This is my data set.<

Answer 1

Does this work?

df<- cbind(df, temp_category=cut(df$avg.temp, breaks=c(-Inf,4,5,6,Inf)))
#the following is more idiomatic
df$temp_category <- cut(df$avg.temp, breaks=c(-Inf,4,5,6,Inf))