SDP_uniform: Determine the SDP matrix for uniform noise under multiple...

Description Usage Arguments

Description

Computes the transition matrix under the case of growth noise, implementation errors in harvesting, and meaurement errors in the stock assessment. Assumes noise sources are distributed by uniform distributions to obtain analytic transition probability densities.

Usage

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SDP_uniform(f, p, x_grid, h_grid, sigma_g, pdfn = function(P, s) dunif(P, 1 -
  s, 1 + s), sigma_m, sigma_i, f_int)

Arguments

f

the growth function of the escapement population (x-h) should be a function of f(t, y, p), with parameters p

p

the parameters of the growth function

x_grid

the discrete values allowed for the population size, x

h_grid

the discrete values of harvest levels to optimize over

sigma_g

is the shape parameter (width) of the multiplicitive growth noise

pdfn

is the shape of the growth noise, which need not be uniform (is by default)

sigma_m

is the half-width of the uniform measurement error (assumes uniform distribution)

sigma_i

is the half-width of the implementation noise (always assumes uniform distribution)

f_int

is the function given by the analytic solution,


cboettig/pdg_control documentation built on May 13, 2019, 2:10 p.m.