addtoqtl {qtl} | R Documentation |
Add a QTL or multiple QTL to a qtl object.
addtoqtl(cross, qtl, chr, pos, qtl.name, drop.lod.profile=TRUE)
cross |
An object of class cross . See
read.cross for details. |
qtl |
The qtl object to which additional QTL are to be added. |
chr |
Vector indicating the chromosome for each new QTL. (These should be character strings referring to the chromosomes by name.) |
pos |
Vector (of same length as chr ) indicating the
positions on the chromosome for each new QTL. If there is no marker or
pseudomarker at a position, the nearest position is used. |
qtl.name |
Optional user-specified name for each new QTL, used in the
drop-one-term ANOVA table in fitqtl .
If unspecified, the names will be of the form "Chr1@10" for a
QTL on Chromsome 1 at 10 cM. |
drop.lod.profile |
If TRUE, remove any LOD profiles from the object. |
An object of class qtl
, just like the input qtl
object,
but with additional QTL added. See makeqtl
for
details.
Karl W Broman, kbroman@biostat.wisc.edu
makeqtl
, fitqtl
,
dropfromqtl
, 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 <- calc.genoprob(fake.f2, step=2, err=0.001) qtl <- makeqtl(fake.f2, qc, qp, what="prob") qtl <- addtoqtl(fake.f2, qtl, 14, 35)