occu: Fit the MacKenzie et al. (2002) Occupancy Model
In jeffreyhanson/unmarkedExtra: Enhancements for the unmarked R pacakge

This function fits the single season occupancy model of MacKenzie et al (2002).

1 2	occu(formula, data, knownOcc = numeric(0), method = "BFGS", control = list())

`formula`	Double right-hand side formula describing covariates of detection and occupancy in that order.
`data`	An `UnmarkedFrameOccu` object
`method`	Method used to solve the model. Either "stan", or a method used by `nloptr`.
`control`	List of options to specify model fitting procedure. See Details.
`kwnownOcc`	Vector of sites that are known to be occupied. These should be supplied as row numbers of the y matrix, eg, c(3,8) if sites 3 and 8 were known to be occupied a priori.