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ecfun
2007 Aug 30
1
t-test within tapply
Hello,
My data are as following:
Data <- data.frame(Ind=rep(1:3,c(10,10,10)),
Replicate=rep(c(rep("a",5),rep("b",5)),3),
EggSize=rep(rnorm(5,mean=10),6)
)
attach(Data)
Using a t-test, I want to check if the mean egg sizes are significantly
different between replicates a and b for each individuals