On May 7, 2010, at 3:30 PM, Jun Shen wrote:
Dear all,
I constructed this function called my.boxplot.stats by replacing
fivnum()
with quantile() in function boxplot.stats(). So I can try different
quantile
methods in bwplot(). The problem is I couldn't pass different values
to the
"type" argument to my.boxplot.stats, which in turn is an argument in
bwplot(). Now I just have to manually change the "type" value in
my.boxplot.stats. What I would like to do is call bwplot() like
bwplot(CL~DOSE,data=patab,stats=my.boxplot.stats(type=7)),
You have defined a function with an argument of x that does not have a
default value, so it throws an error when you call it with no value
for x. (It's not complaining about the type argument.)
--
David.
But I got an error:
Error in my.boxplot.stats(type = 7) : element 1 is empty;
the part of the args list of 'is.na' being evaluated was:
(x)
Thanks a lot.
Jun Shen from Millipore Corporation
========================================================
my.boxplot.stats<-function (x, coef = 1.5, *type=6*, do.conf = TRUE,
do.out
= TRUE)
{
if (coef < 0)
stop("'coef' must not be negative")
nna <- !is.na(x)
n <- sum(nna)
stats <- stats::quantile(x, type=type,na.rm = TRUE)
iqr <- diff(stats[c(2, 4)])
if (coef == 0)
do.out <- FALSE
else {
out <- if (!is.na(iqr)) {
x < (stats[2L] - coef * iqr) | x > (stats[4L] + coef *
iqr)
}
else !is.finite(x)
if (any(out[nna], na.rm = TRUE))
stats[c(1, 5)] <- range(x[!out], na.rm = TRUE)
}
conf <- if (do.conf)
stats[3L] + c(-1.58, 1.58) * iqr/sqrt(n)
list(stats = stats, n = n, conf = conf, out = if (do.out) x[out &
nna] else numeric(0L))
}
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______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
