dComb: Dempster's Combination Operator

Description Usage Arguments Value Author(s) References See Also Examples

Description

Combine evidence in the form of mass functions using Dempster's combination operator.

Usage

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dComb(x,y)

Arguments

x

single mass function or a list of mass functions

y

single mass function if x is a single mass function, otherwise missing

Value

mass function

Author(s)

Alexander Karlsson

References

Dempster, A. P. (1969), A generalization of Bayesian inference, Journal of the Royal Statistical Society, 30, 205-247

Shafer, G. (1976), A Mathematical Theory of Evidence Princeton University Press

See Also

yComb, mComb, cComb

Examples

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# state space
stateSpace <- c("a", "b", "c")

# mass functions 
m1 <- mass(list("a"=0.1, "a/b/c"=0.9), stateSpace)
m2 <- mass(list("a"=0.2, "a/b/c"=0.8), stateSpace)

# Dempster's combination
dComb(m1, m2)
# or 
dComb(list(m1, m2))

Example output

EvCombR - Evidence Combination in R, Version 0.1-2 
Copyright (c) 2014, Alexander Karlsson
License: MIT

An object of class "mass"
Slot "focal":
$a
[1] 0.28

$`a/b/c`
[1] 0.72


Slot "space":
[1] "a" "b" "c"

An object of class "mass"
Slot "focal":
$a
[1] 0.28

$`a/b/c`
[1] 0.72


Slot "space":
[1] "a" "b" "c"

EvCombR documentation built on May 29, 2017, 9:35 p.m.