computeMPLElambda(formula, data, knownOcc=numeric(0), starts,
method="BFGS",engine=c("C", "R"))unmarkedFrameOccu objectoptim.See occuPEN for details and examples.
Moreno, M. and S. R. Lele. 2010. Improved estimation of site occupancy using penalized likelihood. Ecology 91: 341-346.
unmarked, unmarkedFrameOccu,
occu, occuPEN, occuPEN_CV,
nonparboot