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chem
2010 Dec 13
0
Help with lme for split plot
...time within side within pond. Pond is random effects. There are
three or four replicate ponds for each treatment
data table looks like this
pond side sampperiod response
1 cont 1 x1
1 cont 2 x2
1 cont 3 x3
1 chem1 1 x1
1 chem1 2 x2
1 chem1 3 x3
2 cont 1 x1
2 cont 2 x2
2 cont 3 x3
2 chem2 1 x1
2 chem2 2 x2
2 chem2 3 x3
3 cont 1 x1
3 cont 2 x2
3 cont 3 x3
3 chem3 1 x1
3 chem3 2 x2
3 chem3 3 x3
I can fit a model using aov
m1<-aov(response~side*sampperiod + Error(pond/side/sampperiod,
data=datafile)
Since there is unequal replication, 4 replicates for one chemical tre...
2008 Oct 29
2
call works with gee and yags, but not geepack
...ch",data=dat)
I obtain the following error:
Error in geese.fit(x, y, id, offset, soffset, w, waves, zsca, zcor, corp, :
nrow(zsca) and length(y) not match
Could someone tell me what I have done incorrectly. Thanks for your
time, Juliet.
Data Below:
id treat time1 time2 time3 time4 chem1 chem2 chem3 chem4 time score chem
1 1 20 18 15 15 1000 1100 1200 1300 0 20 1000
1 1 20 18 15 15 1000 1100 1200 1300 2 18 1100
1 1 20 18 15 15 1000 1100 1200 1300 3 15 1200
1 1 20 18 15 15 1000 1100 1200 1300 6 15 1300
2 1 22 24 18 22 1000 1000 1055 950 0 22 1000
2 1 22 24 18 22 1000 1000 1055 950 2 24 10...