ch3b {qtlbook}

Data with bad markers

Description

Anonymous data with markers showing severe segregation distortion.

Usage

ch3b

Format

An object of class cross. See qtl::read.cross() for details.

Details

An intercross with 144 individuals, each with one phenotype and typed at 145 markers.

Source

Karl W Broman, [e-mail]

References

Broman, K. W. and Sen, S. (2009) A Guide to QTL Mapping with R/qtl. Springer, New York.

See Also

ch3a, ch3c

Examples

data(ch3b)

library(qtl)
thetab <- geno.table(ch3b)
plot(-log10(thetab[,ncol(thetab)]), ylab=expression(-log[10](P)))
thetab[thetab[,ncol(thetab)] < 1e-6,]