kRepsOverA: A filter function for at least k sets of replicates in a factorial experiment to have mean larger than A.
Description
`kRepsOverA' returns a filter function with bindings for `k' and `A'. This function evalutes `TRUE' is at least `k' of the means of the replicates are larger than `A'.
Usage
kRepsOverA(k, A = 100, INDEX)
Arguments
k
The number of sets of replicates with mean greater than A.
A
The value to exceed.
INDEX
List of factors, each of the same length as the input vector.
Value
A function with bindings for `A', `k', and `INDEX'.
library(affy)
library(genefilter)
data(estrogen)
#select the replicates with values larger than 5f1 <- kRepsOverA(1,5,INDEX=pData(estrogen))
genefilter(estrogen[1:30],f1)