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manicle
2009 Mar 24
4
multiple paired t-tests
Hi R users,
I have a very large data set that has two conditioning variables for the
test I want to perform.
A toy set can be simulated:
type<-sample(1:3,100,replace=TRUE)
class<-sample(1:20,100,replace=TRUE)
value<-rnorm(100)
data<-cbind(type,class,value)
(though type and class are alphanum)
I want to perform the three pair-wise t-tests between types for each
class in data.
Can