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The optim
function in R is a versatile optimization routine that can be used to minimize or maximize a function. It is commonly employed in various fields, including statistics, machine learning, and mathematical modeling. Here's an overview of key aspects of optimization using the optim
function:
1. Installation and Loading:
The optim
function is part of the base R installation, so there's no need to install additional packages. You can load it directly.
# No installation needed, just load the optim package
library(stats)
2. Basic Syntax:
The basic syntax of the optim
function is as follows:
optim(par, fn, ..., method = "BFGS", control = list())
par
: Initial values for the parameters to be optimized.fn
: The objective function to be minimized or maximized....
: Additional arguments to be passed to the objective function.method
: The optimization algorithm to be used (default is "BFGS").control
: A list of control parameters for the optimization method.