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2012 Aug 24
0
A question about GRAMMAR calculations in the FAM_MDR algorithm
...;) file.remove("rawoutput.txt") # loading data and bringing in GenABEL format rawfile="simulation.raw" convert.snp.ped(pedfile, mapfile, rawfile) simulation.GenABEL = load.gwaa.data(phenofile = phenofil, genofile = rawfile, force=F,makemap=F,sort=F) pedigree=read.table(pedfile) pedsize=nrow(pedigree) nsnps=(ncol(pedigree)-6)/2 # minor allele count and handling missing genotype data allelic = function(k){ geno=pedigree[,(5+2*k):(6+2*k)] allelic=rowSums(geno==2)-(geno[,1]==0 & geno[,2]==0) # -1 for missing, 0,1,2 gives count of variant allele } # preparing MB-MDR S...