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Greetings: In a function I'm trying to write I am multiplying each row in a matrix by a vector. When the vector extends beyond the end of the matrix I need to have the multiplication wrap around (continue with...
Hello all: I have a protein sequence alignment in a data frame (align1, 72 x 236), where each row is a protein and each column a site in the alignment. AA is vector of amino acid symbols plus "-" (gap). I...
Hello all: I have written a few R scripts and am trying to turn them into a package for submission to CRAN. All of these scripts are R code only, no C or C++ or anything else. I'm working...
Hello: I am attempting to use R to analyze amino acid frequencies in aligned protein sequences and need some help. So far, I have imported my sequence alignment into a data frame (lets call it "alignment") with each site in...
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