plotrix (version 3.8-4)

getIntersectList: Enter a set intersection list

Description

Enter the information for a set intersection display.

Usage

getIntersectList(nelem,xnames=NULL,sep="+")

Value

A list of the counts of elements in the set intersections.

Arguments

nelem

The number of sets for which the intersections will be displayed.

xnames

The labels for the set intersections. The function creates names from combinations of the first nelem capital letters if none are given.

sep

The separator to use when calling paste.

Author

Jim Lemon

Details

getIntersectList allows the user to manually enter the counts of set intersections rather than build this information from a matrix of data. It is probably most useful for producing an intersection diagram when the counts of the intersections are already known, or when the values are proportions rather than counts as in the example.

It is very helpful when there are large numbers of elements, as the makeIntersectList function runs very slowly.

See Also

makeIntersectList, intersectDiagram

Examples

 # this example is from a haplotype mapping problem submitted by Mao Jianfeng
 if (FALSE) {
 hapIntList<-
  getIntersectList(3,xnames=c("hap.Pd","hap.Pt","hap.Py"))
 # enter the data as follows:
 # Number of elements in hap.Pd - 1: 27.586
 # Number of elements in hap.Pt - 1: 20.689
 # Number of elements in hap.Py - 1: 31.035
 # Number of elements in hap.Pd-hap.Pt - 1: 10.345
 # Number of elements in hap.Pd-hap.Py - 1: 10.345
 # Number of elements in hap.Pt-hap.Py - 1: 0
 # Number of elements in hap.Pd-hap.Pt-hap.Py - 1: 0
 # Total number of elements - 1: 100
 }
 hapIntList<-structure(list(structure(c(27.586, 20.689, 31.035),
  .Names = c("hap.Pd","hap.Pt","hap.Py")),
  structure(c(10.345, 10.345, 0),
  .Names = c("hap.Pd-hap.Pt","hap.Pd-hap.Py","hap.Pt-hap.Py")),
  structure(0, .Names = "hap.Pd-hap.Pt-hap.Py"),100),
  class = "intersectList")
 intersectDiagram(hapIntList)