Re: [R] Contrasts within ANOVA frame (Repost)

2009-08-20 Thread JLucke
[R] Contrasts within ANOVA frame (Repost) Would like to try my luck to see if I can catch your eyes. I was trying to do some contrasts within ANOVA. I searched the archive and found a clue posted by Steffen Katzner ( http://tolstoy.newcastle.edu.au/R/help/06/01/19385.html) I have three levels

Re: [R] Contrasts within ANOVA frame (Repost)

2009-08-20 Thread Mark Difford
Hi Jun, >> I have three levels for a factor names "StdLot" and want to make three >> comparisons, 1 vs 2, 1 vs 3 and 2 vs 3. With only three levels to your factor, the contrast matrix you are specifying is over-parametrized (i.e. over-specified): it has 3 rows and 3 columns. ## Look at the defa

[R] Contrasts within ANOVA frame (Repost)

2009-08-19 Thread Jun Shen
Would like to try my luck to see if I can catch your eyes. I was trying to do some contrasts within ANOVA. I searched the archive and found a clue posted by Steffen Katzner ( http://tolstoy.newcastle.edu.au/R/help/06/01/19385.html) I have three levels for a factor names "StdLot" and want to make

[R] Contrasts within ANOVA frame

2009-08-11 Thread Jun Shen
Dear all, I was trying to do some contrasts within ANOVA. I searched the archive and found a clue posted by Steffen Katzner ( http://tolstoy.newcastle.edu.au/R/help/06/01/19385.html) I have three levels for a factor names "StdLot". I just want to make three comparisons, 1 vs 2, 1 vs 3 and 2 vs 3.