Write out mediator-based trans-eSNP effects

The function takes in the SNP-weights for mediators and writes out the amplified SNP-weights based on

amplifyTrans(whichMed, medTrainList, lmCaretObj)

Arguments

geneInt	character, identifier for gene of interest
qtlFull	data frame, mediator-gene qtl results
numMed	numeric, user-defined maximum number of correlated mediators

Value

a vector of correlated biomarkers to be treated as mediators