Class for SNP genotype and phenotype data.
Objects of this class contain subject-specific SNP genotype or allele dosage data along with subject-specific phenotypes data, and SNP coded/noncoded allele information.
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an object to test or coerce to snpdata class.
other arguments to
An object of class
snpdata is a list with at least two elements, called
snpinfo” and “
snpdata$snpinfo must be a data frame
with (at least) columns called “
coded.allele” and “
snpdata$data must be a data frame with columns for each SNP in
snpdata$snpinfo with column names formed by pasting together the
coded.allele with a separating underscore character,
Toby Johnson Toby.x.Johnson@gsk.com
Widely used formats for measured or
imputed SNP genotype data are read by the
which all return data in the format described above.
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