My colleague and I were wondering whether anyone knew of a way to specify the syntax for a quadratic nest age model in RMark? I have included example code so you may be able to detect our error:
- Code: Select all
DSR varies with nest age (quadratic).
Age2=mark (RMdata,nocc=90,model="Nest",
model.parameters=list(S=list(formula=~I(NestAge) + I((NestAge)^2))))
Any assistance is appreciated.
Thanks,
Nathan