R: function to change strand

patch_strand {GenABEL}

R Documentation

function to change strand

Description

Changes strand in gwaa.data-class object

Usage

	patch_strand(data,snpid,strand,based_on="snpnames", quiet = TRUE)

Arguments

`data`	gwaa.data or snp.data object
`snpid`	vector of ids of snsp (name or position)
`strand`	vector of strands ("+","-","u")
`based_on`	either "snpnames" or "map" depending on what info is provided by snpid
`quiet`	indicates if recoding report should be directed to the screen

Details

For SNPs, as identified by 'snpid', changes strand to strand specified by 'strand'

Value

object of gwaa.data or snp.data class

Author(s)

Yurii Aulchenko

Examples

require(GenABEL.data)
data(srdta)
as.character(srdta@gtdata@strand[1:20])
a <- patch_strand(srdta,srdta@gtdata@snpnames[1:10],rep("+",10))
as.character(a@gtdata@strand[1:20])
a <- patch_strand(srdta,srdta@gtdata@map[1:10],rep("+",10),based_on="map")
as.character(a@gtdata@strand[1:20])

[Package GenABEL version 1.8-0 Index]