[[mkatari-bioinformatics-august-2013|Back to Manny's Bioinformatics Workshop Home]]
====== Converting SNP Format ======
This is not the most efficient way to process this, however intuitively its the simplest.
Initialize vectors to save output which can be combined later
snpcol=character()
gencol=character()
allelesa=character()
allelesb=character()
confcol=character()
The number of rows for final output
rowcounter=1
Foreach snp
for (i in 1:ncol(snponly)) {
#foreach genotype
for (j in 1:nrow(snponly)) {
#only do steps if value is not NA
if (!is.na(snponly[j,i])) {
alleles = unlist(strsplit(as.character(snponly[1,1]), ""))
snpcol[rowcounter]=colnames(snponly)[i]
gencol[rowcounter]=rownames(snponly)[j]
allelesa[rowcounter]=alleles[1]
allelesb[rowcounter]=alleles[2]
confcol[rowcounter]="1"
rowcounter=rowcounter+1
}
}
}