All values between min and max

问题

Suppose I know the min and max id, what I need is to have all ids between the min and max ones. Suppose id<-c(1:20) now min=1 and max=20 which function in R show the all values between these two numbers?

回答1:

You can use sets algebra:

id <- c(1:20)
setdiff(id, range(id))
#[1]  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19

Also you can do:

id[!(id %in% range(id))]

or:

id[!(id %in% c(max(id), min(id)))]

来源：https://stackoverflow.com/questions/43746935/all-values-between-min-and-max