Convert indexes given by to triplet `(idx, group, replicate)' to the
(one-dimensional) index used in the grouped and replicated model
inla.idx(
idx,
n = max(idx),
group = rep(1, length(idx)),
ngroup = max(group),
replicate = rep(1, length(idx)),
nrep = max(replicate)
)
Arguments
- idx
The index within the basic model. (Legal values from 1' to n'.)
- n
The length `n' of the basic model.
- group
The index within group. (Legal values from 1' to ngroup'.)
- ngroup
Number of groups.
- replicate
The index within replication. (Legal values from 1' to nrep'.)
- nrep
Number of replications.
Value
inla.idx returns indexes in the range 1' to nngroupnrep' representing where the triplet `(idx,group,replicate)' is
stored internally in the full grouped and replicated model.