Methods in Rcpp should stop if string parameter is not among allowed ones

[ncordon]

For example, for markovchainFit we have the parameter method, which should only take values mle, bootstrap, laplace or map, but that is not checked and the following code will give an unexpected output:

c1<-c("a","b","c","c","e") 
c2<-c("a","b","d","e") 
c3<-c("a","c","b","c","d") 
c4<-c("a","b","b","d","b","c","d","e") 
c5<-c("a","c","c","d","d") 
c6<-c("a","c","d","d","b","b","e") 

mylist<-list(c1,c2,c3,c4,c5,c6)
mylistMc<-markovchainFit(data=mylist, method = "other")

[ncordon]

Related read: http://adv-r.had.co.nz/C-interface.html#c-input-validation