relation {RQDA}R Documentation

Relation between two codings

Description

To calculate the relation between two codings, given the coding indexes.

Usage

relation(index1, index2)

Arguments

index1 The first coding index, it is length-2 integer vector with the first element (index1[1]) less than the second element (index1[2]).
index2 The second coding index, it is length-2 integer vector with the first element (index2[1]) less than the second element (index2[2]).

Details

The relation between two codings can be any of inclusion, overlap, exact (special case of inclusion and overlap) and proximity (Neither overlap nor inclusion).

Value

A 6-element list:

Relation Length-1 character, standing for the type of relation. It may be one of inclusion, overlap, exact or proximity.
OverlapIndex Length-2 vector, the index of overlapping between two coding indexes. It is c(NA,NA) when relation is proximity.
UnionIndex Length-2 vector, the index of union of the two coding indexes. It is c(NA,NA) when relation is proximity.
Distance Distance of two coding indexes. It is NA when relation is not proximity.
WhichMin Which argument (index1 or index2) has the minimum value. If both have the same minmum value, return NA.
WhichMax Which argument (index1 or index2) has the maximum value. If both have the same maxmum value, return NA.

Author(s)

HUANG Ronggui

Examples

## Not run: 
relation(c(20,30),c(22,28)) # inclusion
relation(c(10,40),c(20,80)) # overlap
relation(c(10,20),c(30,50)) # proximity with distance of 10
relation(c(10,20),c(10,20)) # exact
relation(c(10,20),c(10,30)) # WhichMin is c(1,2)
## End(Not run)

[Package RQDA version 0.1-6 Index]