# plot.extlasso: Plot of regularization path In extlasso: Maximum Penalized Likelihood Estimation with Extended Lasso Penalty

 plot.extlasso R Documentation

## Plot of regularization path

### Description

Produces a plot of entire regularization path from a 'extlasso' object obtained using ‘extlasso’ function.

### Usage

```## S3 method for class 'extlasso'
plot(x,xvar=c("lambda","L1norm","fraction of norm"),...)```

### Arguments

 `x` A ‘extlasso’ object obtained using ‘extlasso’ function. `xvar` What should be on x-axis? xvar="lambda" produces a plot of regularization path with respect to lambda, xvar="L1norm" produces a plot of regularization path with respect to L1 norm of coefficients and xvar="fraction of norm" produces a plot of regularization path with respect to fraction of norm of coefficients. Default is xvar="L1norm". `...` Optional graphical parameters to matplot() function

### Value

A plot of regularization path is produced.

### Author(s)

B N Mandal and Jun Ma

### References

Mandal, B.N. and Jun Ma, (2014). A Jacobi-Armijo Algorithm for LASSO and its Extensions.

### Examples

```x=matrix(rnorm(100*30),100,30)
y=rnorm(100)
g1=extlasso(x,y,family="normal")
plot(g1)
plot(g1,xvar="lambda")
x=matrix(rnorm(100*30),100,30)
y=sample(c(0,1),100,replace=TRUE)
g1=extlasso(x,y,family="binomial")
plot(g1)
plot(g1,xvar="lambda")
```

extlasso documentation built on May 13, 2022, 9:08 a.m.