Hi Everyone.
I am rather new to R and I've been trying to implement a function to
carry out the above test. For a couple of days now I've been stuck on
how to generate average rank differences.
Say I have a vector of average ranks:
averank- c(2,5,9,12)
I would like to subtract averank[1]
I don't know Dunn's rank test, but the following substracts each of
the sums of averanks from the next rank.
cumsum(averank)[-length(averank)] - averank[-1]
Hank
On Oct 17, 2005, at 4:30 AM, Iain Gallagher wrote:
Hi Everyone.
I am rather new to R and I've been trying to implement a
Thanks for your reply Hank. It's not really what I'm
after (though it's good to know).
For the test ( as described in Statistics for the
Biosciences by W. Gardiner. Prentice Hall, 1997) I
have to rank my groups, calculate the average rank,
then subtratc each average rank from every other. Any
89 90 92
92
- Original Message -
From: IAIN GALLAGHER [EMAIL PROTECTED]
To: Martin Henry H. Stevens [EMAIL PROTECTED]
Cc: r-help@stat.math.ethz.ch
Sent: Monday, October 17, 2005 2:29 PM
Subject: Re: [R] Dunn's post hoc test
Thanks for your reply Hank. It's not really what I'm
after
averank
[1] 15 29 30 31 31 38 52 66 82 94
- Original Message -
From: IAIN GALLAGHER [EMAIL PROTECTED]
To: Martin Henry H. Stevens [EMAIL PROTECTED]
Cc: r-help@stat.math.ethz.ch
Sent: Monday, October 17, 2005 2:29 PM
Subject: Re: [R] Dunn's post hoc test
Thanks for your reply Hank. It's
