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2012 Feb 21
2
In R 2.14.1, what does wrong sign in 'by' argument mean?
Here is my code
    slidingwindowplotATGC = function(windowsize, inputseq) 
    {
    starts = seq(1, length(inputseq)-windowsize, by = windowsize)
    n = length(starts)
    chunkGs = numeric(n)
    chunkAs = numeric(n)
    chunkTs = numeric(n)
    chunkCs = numeric(n)
    for (i in 1:n) { 
        chunk = windowsize[starts[i]:(starts[i]+9999)]
        chunkG = sum("g" == chunk)/length(chunk)
        chunkA = sum("a" == chunk)/length(chunk)
        chunkT = sum("t" == chunk)/length(chunk)
        chunkC = sum("c&qu...