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dghyper
2011 Aug 31
0
Fitting the negative hypergeometric distribution
...data vector) and then
test for goodness of fit. However, a search of the R website and R-Help
archives threw up only a couple of mentions of the negative
hypergeometric...
Could anyone be of any help? I thought I might be able to use the
fitdistr function in MASS with a densfun something like:
dneghyper <-
function(x,M,K,n){(choose(M+x,x-1)*choose(K-M+n-x,n-x+1))/choose(K+n-1,n
)}
but it throws up errors ("initial value in 'vmmin' is not finite") even
when I use the actual parameter values or similar, as estimated by
another program, for the start values...
Maybe I am doing...