r - Categorize a vector according to intervals -


this question has answer here:

i have discrete variable p represents propabilites 

 p <- c(0.5,  0.4,  0.5,  0.1,  0.8,  0.9 )

i want rearrange variable , change ordinal

the categories :

01 less 0.2 02 0.2 0.4 03 more 0.4 0.6  04 more 0.6 0.8 05 more 0.8  1

you can use function cut follows

p <- c(0.5,  0.4,  0.5,  0.1,  0.8,  0.9 )  cut(p, breaks = seq(0, 1, 0.2), include.lowest = true) #[1] (0.4,0.6] (0.2,0.4] (0.4,0.6] [0,0.2]   (0.6,0.8] (0.8,1]   #levels: [0,0.2] (0.2,0.4] (0.4,0.6] (0.6,0.8] (0.8,1]

if want change labels, try labels argument, e.g. 

cut(p, breaks = seq(0, 1, 0.2), labels = paste0("0", 1:5), include.lowest = true) #[1] 03 02 03 01 04 05 #levels: 01 02 03 04 05

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