R/reversemapping.R

Defines functions reverseMap

###### borrowed code found online #################################################
#Description: Reverses the direction of a bidirectional mapping, removes an entries pointing to NULL
#Author: Matthew Young
#Date Modified: 13/12/2010
reverseMap=function(map){
  tmp=unlist(map,use.names=FALSE)
  names(tmp)=rep(names(map),times=as.numeric(summary(map)[,1]))
  return(split(names(tmp),as.vector(tmp)))
}
#########################################

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rgsepd documentation built on Nov. 17, 2017, 11:38 a.m.