How to classify values in attribute table

[solomonsg]

Dear all,

I am plotiing values in attribute table of a shapefile and the values in one of the table ( e.g. Duration) ranges from 0-4370 and i want to classfy them into 5 using somthing breaks,
breaks=c(0, 2776, 3061, 3272, 3558, 4370)

Is there any way to to do this classfication in r;

   shp <- read_sf('Duration.shp')
   ggplot(shp) + geom_sf(aes(colour = Duration))

Best regards,

Solomon

[edzer]

You'll find an answer below your initial post: #88 (comment)