plot.geno {qtl} | R Documentation |
Plot the genotypes on a particular chromosome for a set of individuals, flagging likely errors.
plot.geno(x, chr, ind, include.xo=TRUE, horizontal=TRUE, cutoff=4, min.sep=2, cex=1.2, ...)
x |
An object of class cross . See
read.cross for details. |
chr |
Chromosome number to plot. |
ind |
Vector of individuals to plot. If missing, all individuals are plotted. |
include.xo |
If TRUE, plot X's in intervals having a crossover. |
horizontal |
If TRUE, chromosomes are plotted horizontally. |
cutoff |
Genotypes with error LOD scores above this value are flagged as possible errors. |
min.sep |
Markers separated by less than this value (as a percent of the chromosome length) are pulled apart, so that they may be distinguished in the picture. |
cex |
Character expansion for the size of points in the plot.
Larger numbers give larger points; see par . |
... |
Ignored at this point. |
Plots the genotypes for a set of individuals. Likely errors are indicated by red squares. In a backcross, genotypes AA and AB are indicated by white and black circles, respectively. In an intercross, genotypes AA, AB and BB are indicated by white, gray, and black circles, respectively, and the partially missing genotypes "not BB" (D in mapmaker) and "not AA" (C in mapmaker) are indicated by green and orange circles, respectively.
None.
Karl W Broman, kbroman@biostat.wisc.edu
data(hyper) # Calculate error LOD scores hyper <- calc.errorlod(hyper,error.prob=0.01) # print those above a specified cutoff top.errorlod(hyper,cutoff=4) # plot genotype data, flagging genotypes with error LOD > cutoff plot.geno(hyper, chr=1, ind=160:200, cutoff=7, min.sep=2)