yComb {EvCombR}

Yager's Combination Operator

Description

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

Usage

yComb(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 (massQ-class)

Note

Yager's combination operator is quasi-associative and therefore we need to keep track of the mass on the empty set by using the class massQ.

Author(s)

Alexander Karlsson

References

Yager, R. (1987), On the Dempster-Shafer Framework and New Combination Rules, Information Sciences 41: 93-137.

See Also

dComb, mComb, cComb

Examples

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

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

# Yager's combination
yComb(m1, m2)
# or 
yComb(list(m1, m2))