jand {nlsr}

jand

Description

approximate Jacobian via numDeriv::jacobian

Usage

jand(pars, resfn = NULL, bdmsk = NULL, resbest = NULL, ndstep = 1e-07, ...)

Arguments

pars

a named numeric vector of parameters to the model

resfn

a function to compute a vector of residuals

bdmsk

Vector defining bounds and masks. Default is NULL

resbest

If supplied, a vector of the residuals at the parameters pars to save re-evaluation.

ndstep

A tolerance used to alter parameters to compute numerical approximations to derivatives. Default 1e-7.

...

Extra information needed to compute the residuals

Author(s)

J C Nash 2014-7-16 nashjc _at_ uottawa.ca