params_grad: this calculates the gradient with respect to the params being...

In delomast/devMCpbt: What the Package Does in One 'Title Case' Line

Description

this is not intended for direct user-level use, but it is exported to allow the user to optionally specify it as a argument to pass to optim when using MLEwrapper. I recommend using it unless you have a very specific reason not to.

Usage

params_grad(params, nPBT, nGSI, ohnc, t, utGSI, ohnc_gsi)

Arguments

params	vector of paramaters to optimize
nPBT	number of PBT groups to estimate
nGSI	number of GSI groups to estimate
ohnc	vector of number of observed (PBT assigned) hatchery fish in each PBT and GSI group (gsi groups should be 0)
t	vector of tag rates for all PBT and GSI groups (gsi groups should be 0)
utGSI	vector of number of un-PBT assigned fish in each GSI group
ohnc_gsi	matrix of counts of fish GSI assigned to various groups

Details

uses the output of test_gradient (chain rule for partial derivatives)

delomast/devMCpbt documentation built on Nov. 14, 2019, 2:39 p.m.