>>>>> "BDR" == Prof Brian Ripley <[EMAIL PROTECTED]>
>>>>> on Wed, 17 Sep 2003 06:58:48 +0100 (BST) writes:
BDR> On Tue, 16 Sep 2003, Deepayan Sarkar wrote:
>> Is the date class standard enough to warrant including a
>> check for it in lattice ?
BDR> I don't think so. The POSIX*t classes in R are the
BDR> most standard, followed by the chron package and only
BDR> then the date package.
Definitely. And I think we should encourage people to
upgrade to POSIX.t from "chron" (let alone "date") more
strongly {Note that there have been as.POSIXct() methods for
these classes since the beginning of the POSIX.t classes.
Could "chron" and "date" users be heard about what
functionality they are missing in POSIX.t ?
On the other hand, the recommended package "survival" has
a(nother?) class "date" and that package is based on S(plus) code
and may hence not be convertible sensibly ?
Martin Maechler <[EMAIL PROTECTED]> http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum LEO C16 Leonhardstr. 27
ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND
phone: x-41-1-632-3408 fax: ...-1228 <><
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