Dear r-bugs,
Whilst playing with ppoints I discovered
that when one uses it directly, occasional
NA's in a vector also become data fractions:
ppoints(c(1,2,NA,4))
Would it be a good idea to add a warning message
as in:
ppoints <- function (n, a = ifelse(n <= 10, 3/8, 1/2))
{
if(any(is.na(n))) warning("'n' contains NA's")
if(length(n) > 1) n <- length(n)
if(n > 0)
(1:n - a)/(n + 1-2*a)
else numeric(0)
}
Another minor remark concerning ?ppoints. It says:
n: either the number of points generate or a vector of
observations. ^^^^^
Best regards,
Tobias
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