Convert indexes

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 `n*ngroup*nrep' representing where the triplet `(idx,group,replicate)' is stored internally in the full grouped and replicated model.

Author

Havard Rue hrue@r-inla.org

Examples

##TODO