weightRT: weightRT
In rsilvabioinfo/ProbMetab: Probabilistic annotation of LC-MS based metabolomics

Builds a c (number of compounds) by m (number of masses) matrix of weights

1 2	weightRT(rtObj, reactionM, userCuttoff = 0.95, rtWeigth = 0.1, plot = FALSE)

`rtObj`	is a list of fitted values predicted by rt.predict.
`reactionM`	is the KEGG search list.
`userCuttoff`	is the user set expectation of error acceptance.
`rtWeigth`	is penalty to errors that fall bellow the threshold given b user.
`plot`	logical, wheter or not do plot the output of the function.