can anybody help with the following error message:
Error in 1:object$rank : NA/NaN argument
I get it with comparisons of single means in an ANOVA.
Example data below.
Thanks, Steffen
seven subjects participated in each of 6 conditions (intervals).
subject = factor(rep(c(1:7), each = 6))
I am having problems with comparing individual means in a
within-subjects ANOVA. From my understanding, TukeyHSD is not
appropriate in this context. So I am trying to compute contrasts, as
follows:
seven subjects participated in each of 6 conditions (intervals).
subject = factor(rep(c(1:7),
I am having problems with comparing individual means in a
within-subjects ANOVA. From my understanding, TukeyHSD is not
appropriate in this context. So I am trying to compute contrasts, as
follows:
seven subjects participated in each of 6 conditions (intervals).
subject = factor(rep(c(1:7),
group=factor(rep(c(0:2), each = 8))
ar = data.frame(group, dip)
con = matrix(c(1, -1, 0, 1, 0, -1), nrow=3, ncol=2, byrow=F)
contrasts(ar$group)=con
aovRes = aov(dip~group, ar)
summary.aov(aovRes, split=list(group = list(0 vs 1 = 1, 0 vs 3 = 2)))
Df Sum Sq Mean Sq F value
Is there a problem with using TukeyHSD for individual comparisons of
means coming from a within-subjects ANOVA?
I always get: no applicable method for TukeyHSD
Thank you, Steffen
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I have problems getting a histogram with relative frequencies on the y-axis.
Here is an example data set:
a - c(4.626, 4.627, 4.627, 4.628, 4.629, 4.629, 4.630, 4.631, 4.632,
4.632)
d = hist(a,freq=F)
d$density
[1] 299. 100. 200. 100. 100. 200.
The obtained
