Entering edit mode
Firstly I want to apologise for my top-posting.
I won't do that in future.
Dear list members,
I'm trying to analyse simple loop-design in MAANOVA package.
I've used two-colour spotted oligo arrays.
I have two maize lines (linia): dl, dh;
two conditions (temp): c (cold), k (control).
Here is my design:
dlc ---- dlk
| X |
dhc ---- dhk
with two more hybridizations, dlc vs dhk and dlk vs dhc ("X" in this
scheme).
I repeated this scheme four times, with dye swap (two labelings in
both directions).
Technical replication is within each replicated scheme. So within
scheme all instances of each sample (samples: dlc, dlk, dhc, dhk)
is from the same isolation (i.e. in each loop each RNA is used
three times in different hybridizations).
Here is my design file (powt_b is a number of biological replicate):
Array Dye Sample linia temp powt_b
dhk_dhc093 Cy5 1 dh c 1
dhk_dhc093 Cy3 2 dh k 1
dhc_dhk104 Cy5 3 dh k 2
dhc_dhk104 Cy3 4 dh c 2
dhk_dhc116 Cy5 5 dh c 3
dhk_dhc116 Cy3 6 dh k 3
dhc_dhk016 Cy5 7 dh k 4
dhc_dhk016 Cy3 8 dh c 4
dhk_dlk094 Cy5 9 dl k 1
dhk_dlk094 Cy3 2 dh k 1
dlk_dhk105 Cy5 3 dh k 2
dlk_dhk105 Cy3 10 dl k 2
dhk_dlk117 Cy5 11 dl k 3
dhk_dlk117 Cy3 6 dh k 3
dlk_dhk139 Cy5 7 dh k 4
dlk_dhk139 Cy3 12 dl k 4
dlc_dlk092 Cy5 9 dl k 1
dlc_dlk092 Cy3 13 dl c 1
dlk_dlc106 Cy5 14 dl c 2
dlk_dlc106 Cy3 10 dl k 2
dlc_dlk118 Cy5 11 dl k 3
dlc_dlk118 Cy3 15 dl c 3
dlk_dlc023 Cy5 16 dl c 4
dlk_dlc023 Cy3 12 dl k 4
dlc_dhc095 Cy5 1 dh c 1
dlc_dhc095 Cy3 13 dl c 1
dhc_dlc107 Cy5 14 dl c 2
dhc_dlc107 Cy3 4 dh c 2
dlc_dhc119 Cy5 5 dh c 3
dlc_dhc119 Cy3 15 dl c 3
dhc_dlc136 Cy5 16 dl c 4
dhc_dlc136 Cy3 8 dh c 4
dlk_dhc101 Cy5 1 dh c 1
dlk_dhc101 Cy3 9 dl k 1
dhc_dlk103 Cy5 10 dl k 2
dhc_dlk103 Cy3 4 dh c 2
dlk_dhc121 Cy5 5 dh c 3
dlk_dhc121 Cy3 11 dl k 3
dhc_dlk015 Cy5 12 dl k 4
dhc_dlk015 Cy3 8 dh c 4
dhk_dlc100 Cy5 13 dl c 1
dhk_dlc100 Cy3 2 dh k 1
dlc_dhk102 Cy5 3 dh k 2
dlc_dhk102 Cy3 14 dl c 2
dhk_dlc120 Cy5 15 dl c 3
dhk_dlc120 Cy3 6 dh k 3
dlc_dhk140 Cy5 7 dh k 4
dlc_dhk140 Cy3 16 dl c 4
As required, Sample denotes distinct RNAs. So, e.g. condition
"dl c" has the same number within single replication of entire
scheme (what makes three technical replicates of RNA withnin
biological replicate).
My data file is organised exactly as described in manual.
I've read the data:
>eth_logrg=read.madata("./eth4maan",designfile=".des4maanova",
arrayType="twoColor",header=TRUE,spotflag=FALSE,log.trans=TRUE,
metarow=2,metacol=3,row=4,col=5,probeid=1,intensity=6)
I wrote the model. I want to include factors linia, powt and
their interaction as a fixed effects. I also included Sample,
powt_b and Array as a random effects. In this way I want to
include effect of techical replication. I didn't include Dye
effect, because the experiment was dye balanced, and data
normalized.
>model.full_nodye=fitmaanova(eth_logrg,formula=~Array+Sample
+powt_b+linia+temp+linia:temp,random=~Array+Sample+powt_b)
After this code I get warning messages. Here it is:
...
Finish gene number 42500 ...
Finish gene number 42600 ...
Finish gene number 42700 ...
Finish gene number 42800 ...
Finish gene number 42900 ...
Finish gene number 43000 ...
Finish gene number 43100 ...
Finish gene number 43200 ...
Finish gene number 43300 ...
Warning messages:
1: In any(result$random[idx.mainterm]) :
coercing argument of type 'double' to logical
2: In any(parsed.formula$random) :
coercing argument of type 'double' to logical
3: In any(result$random[idx.mainterm]) :
coercing argument of type 'double' to logical
4: In any(parsed.formula$random) :
coercing argument of type 'double' to logical
What it means? I've got the object I specified, is it valid?
> summary(model.full_nodye)
Length Class Mode
probeid 43381 -none- character
yhat 2082288 -none- numeric
S2 173524 -none- numeric
loops 43381 -none- numeric
S2.level 3 -none- character
G 43381 -none- numeric
Array 1041144 -none- numeric
Array.level 24 -none- character
Sample 694096 -none- numeric
Sample.level 16 -none- numeric
powt_b 173524 -none- numeric
powt_b.level 4 -none- numeric
linia 86762 -none- numeric
linia.level 2 -none- character
temp 86762 -none- numeric
temp.level 2 -none- character
linia:temp 173524 -none- numeric
linia:temp.level 4 -none- character
model 12 mamodel list
subCol 1 -none- logical
I also would like to request more information about usage of
the MAANOVA package.
I've read manual and material from this list and
http://churchill.jax.org/software/rmaanova.shtml.
In particular I'd like to find out how to set up contrasts,
like e.g. dhc vs dhk.
Best Regards,
Maciej Jo?czyk
Department of Plant Molecular Ecophysiology
Institute of Plant Experimental Biology
Faculty of Biology, University of Warsaw
02-096 Warszawa, Miecznikowa 1
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