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meander
2010 Jun 01
2
Help on aggregate method
...- which((aggrTable[,1]==dataTable[["Attr1"]][ind]) &
(aggrTable[,2]==dataTable[["Attr2"]][ind]))
as.numeric(aggrTable[index,3])
}
avgDur <- aggregate(ap.dat[["Dur"]], by = list(ap.dat[["Attr1"]],
ap.dat[["Attr2"]]), FUN="mean")
meanDur <- sapply((1:length(ap.dat[,1])), FUN=matchMean, ap.dat, avgDur)
ap.dat <- cbind (ap.dat, meanDur)
As I deal with very large dataset, it takes long time to run my
matching function, so if you had an idea on how to automate more this
matching process I would be really grateful.
Thank you ver...