print.HDtweedie {HDtweedie} | R Documentation |
print a HDtweedie object
Description
Print the nonzero group counts at each lambda along the HDtweedie path.
Usage
## S3 method for class 'HDtweedie'
print(x, digits = max(3, getOption("digits") - 3), ...)
Arguments
x |
fitted |
digits |
significant digits in printout |
... |
additional print arguments |
Details
Print the information about the nonzero group counts at each lambda step in the HDtweedie
object. The result is a two-column matrix with columns Df
and Lambda
. The Df
column is the number of the groups that have nonzero within-group coefficients, the Lambda
column is the the corresponding lambda.
Value
a two-column matrix, the first columns is the number of nonzero group counts and the second column is Lambda
.
Author(s)
Wei Qian, Yi Yang and Hui Zou
Maintainer: Wei Qian <weiqian@stat.umn.edu>
References
Qian, W., Yang, Y., Yang, Y. and Zou, H. (2016), “Tweedie's Compound
Poisson Model With Grouped Elastic Net,” Journal of Computational and Graphical Statistics, 25, 606-625.
Examples
# load HDtweedie library
library(HDtweedie)
# load auto data set
data(auto)
# fit the lasso
m0 <- HDtweedie(x=auto$x,y=auto$y,p=1.5)
# print out results
print(m0)
# define group index
group1 <- c(rep(1,5),rep(2,7),rep(3,4),rep(4:14,each=3),15:21)
# fit the grouped lasso
m1 <- HDtweedie(x=auto$x,y=auto$y,group=group1,p=1.5)
# print out results
print(m1)