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attest
2012 Nov 01
4
Select the last rows of when specific conditions are met.
...this is true than the last 5000 rows of that specific trial for
that subject number needs to be deleted.
But I am completely stuck on how to do so. After various attempts I have
finally come up with the following (which obviously does not work).
if (dat["tt"]>6000
){
return(
tail(dattest[,c("Trial", "Subj" )],n=5000) <- NA
}
Can anybody explain what I need to do?
Thank you so much!
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