GradF: Computes gradident of a function given parameters and offset value epsilon.
Description
Computes gradident of a function given parameters and offset value epsilon.
Usage
GradF(f, params, epsilon = 1e-06)
Arguments
f
R function taking only a vector of parameter as input.
epsilon
Offset value for all components.
Value
Gradient of function f
at parameters params
with offset epsilon
.