[Rd] ppoints (PR#7538)

From: <tobias.verbeke_at_telenet.be>
Date: Thu 20 Jan 2005 - 07:35:59 EST


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



R-devel@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel Received on Thu Jan 20 06:41:16 2005

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