table2map {qtl}

Convert a table of marker positions to a map object.

Description

Convert a data frame with marker positions to a map object.

Usage

table2map(tab)

Arguments

tab

A data frame with two columns: chromosome and position. The row names are the marker names.

Value

A map object: a list whose components (corresponding to chromosomes) are vectors of marker positions.

Author(s)

Karl W Broman, [e-mail]

See Also

map2table, pull.map, est.map

Examples

tab <- data.frame(chr=c(1,1,1,1,2,2,2,2,3,3,3,3),
                  pos=c(0,2,4,8,0,2,4,8,0,2,4,8))
rownames(tab) <- paste0("marker", 1:nrow(tab))

map <- table2map(tab)