is.inf.Rdis.inf returns a vector of the same length as the input object,
indicating which elements are infinite (not missing).
is.inf(x)This calls is.infinite.
This returns a vector of the same length as x; the jth
element is TRUE if x[j] is infinite
(i.e., equal to one of Inf or -Inf).
This will be FALSE if x is not numeric or complex.
Complex numbers are infinite if either the real and imaginary part is.
is.inf(Inf)
#> [1] TRUE
# [1] TRUE
is.inf(NA)
#> [1] FALSE
# [1] FALSE
is.inf(1)
#> [1] FALSE
# [1] FALSE