# Compute abundance in covered region for rem.fi model object
#
# par - parameter values (used when computing derivatives wrt parameter
# uncertainty)
# model - ddf model object
# group - if TRUE computes group abundance and if FALSE individual abundance
#
# result - abundance estimate
NCovered.rem.fi <- function(par=NULL, model, group=TRUE, ...){
if(!is.null(par)){
model$mr$coefficients <- par
fitted <- predict(model, compute=TRUE, integrate=TRUE)$fitted
}else{
fitted <- model$fitted
}
if(!group){
size <- model$data$size[model$data$observer==1 &
model$data$object %in%
as.numeric(names(model$fitted))]
Nhat <- sum(compute.Nht(fitted, FALSE, size))
}else{
Nhat <- sum(compute.Nht(fitted, TRUE, size=NULL))
}
return(Nhat)
}
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