This function verifies if a state is reachable from another, i.e., if there exists a path that leads to state j leaving from state i with positive probability
is.accessible(object, from, to)
object | A |
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from | The name of state "i" (beginning state). |
to | The name of state "j" (ending state). |
A boolean value.
It wraps an internal function named reachabilityMatrix
.
James Montgomery, University of Madison
is.irreducible
Giorgio Spedicato, Ignacio Cordón
statesNames <- c("a", "b", "c") markovB <- new("markovchain", states = statesNames, transitionMatrix = matrix(c(0.2, 0.5, 0.3, 0, 1, 0, 0.1, 0.8, 0.1), nrow = 3, byrow = TRUE, dimnames = list(statesNames, statesNames) ) ) is.accessible(markovB, "a", "c")#> [1] TRUE