Sequence generation

As opposed to the standard seq command the function iseq returns an empty vector if the starting value is larger than the end value.

Usage

iseq(from = 1, to = 1)

Arguments

from, to

the starting and end values of the sequence.

Value

iseq returns an empty integer vector if to is less than from and

seq(from,to) else.

Details

More general than seq_len because the sequence does not need to start from 1.

Examples

iseq(0,1) # => c(0,1)
#> [1] 0 1
iseq(1,0) # => integer(0)
#> integer(0)
seq(1,0)  # => c(1,0)
#> [1] 1 0