dropfromqtl: Drop a QTL from a qtl object
In byandell/qtl: Tools for analyzing QTL experiments

Description Usage Arguments Details Value Author(s) See Also Examples

Drop a QTL or multiple QTL from a QTL object

1	dropfromqtl(qtl, index, chr, pos, qtl.name, drop.lod.profile=TRUE)

`qtl`	A qtl object, as created by `makeqtl`.
`index`	Vector specifying the numeric indices of the QTL to be dropped.
`chr`	Vector indicating the chromosome for each QTL to drop.
`pos`	Vector (of same length as `chr`) indicating the positions of the QTL to be dropped.
`qtl.name`	Vector specifying the names of the QTL to be dropped.
`drop.lod.profile`	If TRUE, remove any LOD profiles from the object.

Provide either chr and pos, or one of qtl.name or index.

The input qtl object with the specified QTL omitted. See makeqtl for details on the format.

Karl W Broman, kbroman@biostat.wisc.edu

makeqtl, fitqtl, addtoqtl, replaceqtl , reorderqtl

data(fake.f2)

# take out several QTLs and make QTL object
qc <- c(1, 6, 13)
qp <- c(25.8, 33.6, 18.63)
fake.f2 <- subset(fake.f2, chr=qc)

fake.f2 <- calc.genoprob(fake.f2, step=2, err=0.001)
qtl <- makeqtl(fake.f2, qc, qp, what="prob")

newqtl <- dropfromqtl(qtl, chr=1, pos=25.8)
altqtl <- dropfromqtl(qtl, index=1)