qtl (version 1.66)

find.flanking: Find flanking markers for a specified position

Description

Find the genetic markers flanking a specified position on a chromosome, as well as the marker that is closest to the specified position.

Usage

find.flanking(cross, chr, pos)

Value

A data.frame, each row corresponding to one of the input positions. The first column contains the left-flanking markers, the second column contains the right-flanking markers, and the third column contains the markers closest to the specified positions.

Arguments

cross

An object of class cross. See read.cross for details.

chr

A vector of chromosome identifiers, or a single such.

pos

A vector of cM positions.

Author

Brian Yandell

See Also

find.marker, plotPXG, find.markerpos, find.pseudomarker

Examples

data(listeria)
find.flanking(listeria, 5, 28)
find.flanking(listeria, c(1, 5, 13), c(81, 28, 26))