search for: rowofmatcheddata

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2012 Dec 15
3
How to speed up the for loop by releasing memeory
Dear list; How can I speed up the run of following code (illustrative) #======================================================================== con<-vector("numeric") for (i in 1:limit) { if(matched data for the ith item found) { if(i==1) {con<-RowOfMatchedData } else {con<-rbind(con,matchedData)} } } #======================================================================== each RowOfMatchedData contains 105 variables, when "i" runs over 10^7 and the data container "con" get l...