Re: [R] Helmert contrasts for repeated measures and split-plot expts

2006-10-13 Thread Spencer Graves
comments in line Roy Sanderson wrote: Dear R-help I have two separate experiments, one a repeated-measures design, the other a split-plot. In a standard ANOVA I have usually undertaken a multiple-comparison test on a significant factor with e.g TukeyHSD, but as I understand it such a

[R] Helmert contrasts for repeated measures and split-plot expts

2006-09-29 Thread Roy Sanderson
Dear R-help I have two separate experiments, one a repeated-measures design, the other a split-plot. In a standard ANOVA I have usually undertaken a multiple-comparison test on a significant factor with e.g TukeyHSD, but as I understand it such a test is inappropriate for repeated measures or