[R] Exclusion of elements in a vector

[Stefan Fritsch]

Dear R Users,

I want to exclude elements in a vector by:

vector[-exclude]

is it intended to cause an error if no elements are excluded?

> vector <- 1:10
> exclude <- NULL
> vector[-exclude]
Error in -exclude 

or am I just definig exclude wrong, if no elements should be excluded?

with kind regards,

Stefan Fritsch