vpgrad: An interface to numDeriv::grad for numerical gradients over...

In dahtah/vecpack: Helps Turn Objects and Lists into Vectors, to Facilitate Interaction with Optimisers and Samplers

Description

Same as vpoptim, pretty much. See examples

Usage

vpgrad(fun, x, ...)

Arguments

fun	function to differentiate (the names of the arguments should be the *same ones* as in the "guess" argument)
x	compute gradient at x
...	passed on to grad

Examples

#gradient of a function of two arguments
vpgrad(function(x,y) x+y,list(x=1,y=3))
#gradient of a matrix function, returned as a matrix
vpgrad(det,diag(2))

dahtah/vecpack documentation built on May 14, 2019, 3:27 p.m.