SNPassoc (version 1.9-2)

plotMissing: Plot of missing genotypes

Description

Plot a grid showing which genotypes are missing

Usage

plotMissing(x, print.labels.SNPs = TRUE, 
        main = "Genotype missing data", ...)

Arguments

x

an object of class 'setupSNP'

print.labels.SNPs

should labels of SNPs be printed?

main

title to place on plot

...

extra arguments of 'image' function

Value

None

Details

This function uses 'image' function to plot a grid with black pixels where the genotypes are missing.

See Also

setupSNP

Examples

# NOT RUN {
 data(SNPs)
 data(SNPs.info.pos) 
 ans<-setupSNP(SNPs,colSNPs=6:40,sep="")
 plotMissing(ans)
 
 # The same plot with the SNPs sorted by genomic position and 
 # showing the information about chromosomes

 ans<-setupSNP(SNPs,colSNPs=6:40,sort=TRUE,SNPs.info.pos,sep="") 
 plotMissing(ans)
# }