[R] Which function to use for multiple comparison?
rossini at blindglobe.net
Mon Jul 8 18:09:47 CEST 2002
There is also the new "multicomp" package (as well as "multtest" in
Bioconductor); the latter, though, is probably more appropriate for
the "many t-tests" style problems. I've not had a chance to look at
>>>>> "thomas" == Thomas Lumley <tlumley at u.washington.edu> writes:
thomas> On Mon, 8 Jul 2002, Julie Cong wrote:
>> [Moderator: This was erronously sent to R-announce,
>> and filtered fortunately ]
>> This is my first time to use R. I'm wondering which function I can use to do
>> multiple comparison. I have an lm object and want to do multiple comparison
>> based on this object. Splus has a function multicomp() but I could not find
>> a similar one in R. Thanks in advance. Really appreciate it.
thomas> At the moment the multiple comparisons features in R are a bit limited.
thomas> p.adjust does a number of corrections of p-values that are very general
thomas> pairwise.t.test is another interface to these same methods
thomas> TukeyHSD provides Tukey's Honestly Significant Difference
thomas> help.search("comparison") suggests that the npmc package might also be
thomas> r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
thomas> Send "info", "help", or "[un]subscribe"
thomas> (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch
A.J. Rossini Rsrch. Asst. Prof. of Biostatistics
U. of Washington Biostatistics rossini at u.washington.edu
FHCRC/SCHARP/HIV Vaccine Trials Net rossini at scharp.org
-------------- http://software.biostat.washington.edu/ ----------------
FHCRC: M: 206-667-7025 (fax=4812)|Voicemail is pretty sketchy/use Email
UW: Th: 206-543-1044 (fax=3286)|Change last 4 digits of phone to FAX
(my tuesday/wednesday/friday locations are completely unpredictable.)
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch
More information about the R-help