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2009 May 21
1
Loop avoidance and logical subscripts
Hello! I'm writing a script with a lot of loops and it executes really slowly over huge amounts of data. I assume it's because I don't know how to avoid using loops. Logical subscripts are more desirable, but I don't know how to implement them. One example of that issue: library(seqinr) GCsequence <- vector() for( i in 1:(length(data$sequence))) {