| pull.geno {qtl} | R Documentation |
Pull out the genotype data from a cross object, as a single big matrix.
pull.geno(cross, chr)
cross |
An object of class cross. See
read.cross for details. |
chr |
Optional vector indicating the chromosomes to consider.
This should be a vector of character strings referring to chromosomes
by name; numeric values are converted to strings. Refer to
chromosomes with a preceding - to have all chromosomes but
those considered. A logical (TRUE/FALSE) vector may also be used. |
A matrix of size n.ind x tot.mar. The raw genotype data in the input cross object, with the chromosomes pasted together.
Karl W Broman, kbroman@biostat.wisc.edu
data(listeria)
dat <- pull.geno(listeria)
# image of the genotype data
image(1:ncol(dat),1:nrow(dat),t(dat),ylab="Individuals",xlab="Markers",
col=c("red","yellow","blue","green","violet"))
abline(v=cumsum(c(0,nmar(listeria)))+0.5)
abline(h=nrow(dat)+0.5)