On Oct 5, 2010, at 6:14 PM, Darin A. England wrote:

Or at least is seems that way to me. It's not a big problem, but the
behavior doesn't match the documentation. (I think r-help is the
place to report this. )

x <- factor(1:5)
is.ordered(x.ro)  # should be FALSE according to ?reorder
[1] TRUE

Unable to reproduce on a fresh session.
> is.ordered(x)
[1] FALSE
> x.ro <- reorder(x, rnorm(5))
>
> is.ordered(x.ro)
[1] FALSE

On a mac 2.11.1 (also tried replicating this process 200 times to see if it were d/t an occasional "ordering" of rnorm(5).)

--
David.


x.ro <- reorder(x, rnorm(5), ordered=FALSE)
is.ordered(x.ro)  # should be FALSE
[1] TRUE


Here is my session info:
sessionInfo()
R version 2.11.1 (2010-05-31)
x86_64-unknown-linux-gnu

locale:
[1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=C              LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8       LC_NAME=C
[9] LC_ADDRESS=C               LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] splines   datasets  utils     stats     graphics  grDevices
methods
[8] base

other attached packages:
[1] Design_2.3-0    Hmisc_3.8-3     survival_2.35-8 RODBC_1.3-2
[5] MASS_7.3-7      lattice_0.19-11

loaded via a namespace (and not attached):
[1] cluster_1.13.1 grid_2.11.1    tools_2.11.1

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David Winsemius, MD
West Hartford, CT

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