Cannot fit Markov model in R

Question

I am doing Markov process for my assignment using R. I already designed my matrix but the problem is I cannot put my matrix into markov object. The error is saying ..

Error in validObject(.Object) :

invalid class “markovchain” object: 1: Error! Row sums not equal to one check positions: 2

invalid class“markovchain” object: 2: Error! Row sums not equal to one check positions: 4

invalid class “markovchain” object: 3: Error! Row sums not equal to one check positions: 6

In addition: Warning message:

In if (check == FALSE) { :
the condition has length > 1 and only the first element will be used

Here is my code

library(markovchain)
areaStates <- c("1","2","3","4","5","6","7")
areaMatrix <- matrix(data = c(0,0.2,0,0.2,0.2,0.2,0.2,
                              0.33,0,0.33,0.33,0,0,0,
                              0,0,1,0,0,0,0,
                              0.33,0.33,0.33,0,0,0,0,
                              1,0,0,0,0,0,0,
                              0.5,0,0,0,1,0,0.5,
                              0.5,0,0,0,0,0.5,0), byrow = T, nrow = 7,
                     dimnames = list(areaStates, areaStates))
area <- new("markovchain", states = areaStates, byrow = T,
                 transitionMatrix = areaMatrix, name = "Area")

So what about the 6th row of the matrix? It has probabilities 0.5, 0.5, 1, which are far from summing up to 1. — Julius Vainora, Apr 11 '19 at 08:17
The error is pointing you to the rows causing the problem, try running `rowSums(areaMatrix)` — DS_UNI, Apr 11 '19 at 08:19

Cannot fit Markov model in R

0 Answers0