ridgereg: Title
In hankOlofs/LinReg: Fitting Linear Regression Models

Description Usage Arguments Value Examples

The function ridgereg takes a formula object, a data.frame and a penalty parameter lambda as arguments, and returns a ridgereg object as an S3 class. It performs ordinary least squares or QR decomposition to calculate different statistics.

1	ridgereg(formula, data, lambda = 0, QR = FALSE)

`formula`	a formula, like y~x
`data`	a data frame
`lambda`	an integer specifying the regularization penalty
`QR`	use QR decomposition if TRUE, else OLS

A ridgereg class object

#' data(mtcars)

# Fitting a ridge regression model using OLS
model_ols <- ridgereg(formula = mpg ~ wt + cyl, data = mtcars, lambda = 1, QR = FALSE)
model_ols 

model_qr  <- ridgereg(formula = mpg ~ wt + cyl, data = mtcars, lambda = 1, QR = TRUE)
model_qr