Hi all,

I'm trying to run a repeated measures ANOVA on some univariate ecological
data that was collected over two growing seasons. I ran the test using the
methodology found on this website:

http://rtutorialseries.blogspot.com/2011/02/r-tutorial-series-one-way-repeated.html

Upon running the actual ANOVA I got this error message:

"> rmanova=anova(yearmodel, idata=yearframe, idesign=~yearfactor)
Warning message:
In function (object, ..., test = c("Pillai", "Wilks", "Hotelling-Lawley",  :
  models with response "NULL" removed because response differs from model 1"

And the p-values I get in the anova summary are completely off, judging by
the t-tests I did on the same data.

The dataset is small (n=6) and was arranged so that the data from the two
different years was arranged in two columns ("2010", "2011).

I've pasted the rest of the code below for reference. I'd appreciate any
suggestions as to what the issue here is!

Thanks,
Varina

transect=read.csv("Transect data.csv")

attach(transect)


replicates=c(1,2)

yearfactor=as.factor(replicates)

yearframe=data.frame(yearfactor)

yearbind=cbind(transect$TP10, transect$TP11)

yearmodel=lm(yearbind~1)


rmanova=anova(yearmodel, idata=yearframe, idesign=~yearfactor)

summary(rmanova)

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