Re: [R] Multiple Comparisons-Kruskal-Wallis-Test: kruskal{agricolae} and kruskalmc{pgirmess} don't yield the same results although they should do (?)

2014-05-16 Thread David Winsemius
On May 16, 2014, at 2:07 PM, Tham Tran wrote: > Dear Mr. Dalgaard, You do realize that was a posting from 2012, right? > > Could you help me know the name of post-hoc multi-comparaison test mentioned > in kruskal function of agricolae package? There are multiple such tests mentioned on that fu

Re: [R] Multiple Comparisons-Kruskal-Wallis-Test: kruskal{agricolae} and kruskalmc{pgirmess} don't yield the same results although they should do (?)

2014-05-16 Thread Tham Tran
Dear Mr. Dalgaard, Could you help me know the name of post-hoc multi-comparaison test mentioned in kruskal function of agricolae package? Thank you in advance. Tham Tran -- View this message in context: http://r.789695.n4.nabble.com/Multiple-Comparisons-Kruskal-Wallis-Test-kruskal-agricolae-

Re: [R] Multiple Comparisons-Kruskal-Wallis-Test: kruskal{agricolae} and kruskalmc{pgirmess} don't yield the same results although they should do (?)

2012-08-07 Thread greatest.possible.newbie
I see.. So apparently the different functions are doing the same thing! :-) Besides I didn't know the groups should have about the same size. Thank you four your time Mr. Dalgaard. -- View this message in context: http://r.789695.n4.nabble.com/Multiple-Comparisons-Kruskal-Wallis-Test-kruskal-ag

Re: [R] Multiple Comparisons-Kruskal-Wallis-Test: kruskal{agricolae} and kruskalmc{pgirmess} don't yield the same results although they should do (?)

2012-08-03 Thread peter dalgaard
On Aug 3, 2012, at 18:49 , David L Carlson wrote: > Generally multiple comparisons are conducted after a test for a significant > difference among any of the groups. For your data > >> kruskal.test(x[,1]~x[,2]) > >Kruskal-Wallis rank sum test > > data: x[, 1] by x[, 2] > Kruskal-Wal

Re: [R] Multiple Comparisons-Kruskal-Wallis-Test: kruskal{agricolae} and kruskalmc{pgirmess} don't yield the same results although they should do (?)

2012-08-03 Thread David L Carlson
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > project.org] On Behalf Of peter dalgaard > Sent: Friday, August 03, 2012 5:59 AM > To: greatest.possible.newbie > Cc: r-help@r-project.org > Subject: Re: [R] Multiple Comparisons-Kruskal-Wallis-Test: > kruskal{agricolae

Re: [R] Multiple Comparisons-Kruskal-Wallis-Test: kruskal{agricolae} and kruskalmc{pgirmess} don't yield the same results although they should do (?)

2012-08-03 Thread peter dalgaard
On Aug 3, 2012, at 11:33 , greatest.possible.newbie wrote: > Thank you for your answer. > The p.adj argument in the kruskal()-function doesn't seem to change > anything... Not even the "bonferroni"-method although it is described as the > most conservative one (multiplying all p-values with the n

Re: [R] Multiple Comparisons-Kruskal-Wallis-Test: kruskal{agricolae} and kruskalmc{pgirmess} don't yield the same results although they should do (?)

2012-08-03 Thread greatest.possible.newbie
Thank you for your answer. The p.adj argument in the kruskal()-function doesn't seem to change anything... Not even the "bonferroni"-method although it is described as the most conservative one (multiplying all p-values with the number of comparisons). I suppose the kruskal()-function is not workin

Re: [R] Multiple Comparisons-Kruskal-Wallis-Test: kruskal{agricolae} and kruskalmc{pgirmess} don't yield the same results although they should do (?)

2012-08-03 Thread peter dalgaard
On Aug 3, 2012, at 07:42 , greatest.possible.newbie wrote: > I am doing multiple comparisons for data that is not normally distributed. > For this purpose I tried both functions kruskal{agricolae} and > kruskalmc{pgirmess}. It confuses me that these functions do not yield the > same results altho