POSIXlt is a list and it is not a list of dates or times, it is a list
of
x - as.POSIXlt(Sys.Date())
names(x)
[1] sec min hour mday mon year wday yday
isdst
So if you want to match these things, you should use POSIXct or any
other numeric-based format (as POSIXct is just a double
RobMcG == McGehee, Robert robert.mcge...@geodecapital.com
on Tue, 29 Jun 2010 10:46:06 -0400 writes:
RobMcG I came across the below mis-feature/bug using match with POSIXlt
objects
RobMcG (from strptime) in R 2.11.1 (though this appears to be an old
issue).
x -
MM == Martin Maechler maech...@stat.math.ethz.ch
on Fri, 2 Jul 2010 12:22:07 +0200 writes:
RobMcG == McGehee, Robert robert.mcge...@geodecapital.com
on Tue, 29 Jun 2010 10:46:06 -0400 writes:
RobMcG I came across the below mis-feature/bug using match with POSIXlt
objects
Hi,
Is this sufficient?
if (.Machine$sizeof.pointer==4){
cat('32\n')
} else {
cat('64\n')
}
Or is it better to test something in R.version, say os?
I'd like to use this to specify appropriate linker arguments when
building the RMySQL windows package.
Jeff
--
Jeffrey Horner jeffrey.horner at gmail.com writes:
Is this sufficient?
if (.Machine$sizeof.pointer==4){
cat('32\n')
} else {
cat('64\n')
}
Or is it better to test something in R.version, say os?
No, the above is perfect, as it also works on other platforms to distinguish
32-bit
R-Devel:
I am trying to get an attribute of the first argument in a call to a
function whose formal arguments consist of dots only and do something, e.g.,
call 'cbind', based on the attribute
f- function(...) {get first attribute; maybe or maybe not call 'cbind'}
I thought of (ignoring
Hi Daniel,
On 02.07.2010, at 23:26, Daniel Murphy wrote:
I am trying to get an attribute of the first argument in a call to a
function whose formal arguments consist of dots only and do something, e.g.,
call 'cbind', based on the attribute
f- function(...) {get first attribute; maybe or maybe
In kmeans() in stats one gets an error message with the default
clustering algorithm if centers = 1. Its often useful to calculate
the sum of squares for 1 cluster, 2 clusters, etc. and this error
complicates things since one has to treat 1 cluster as a special case.
A second reason is that
