The package "flare" provides the implementation of a family of Lasso variants including Dantzig Selector, LAD Lasso, SQRT Lasso, Lq Lasso for estimating high dimensional sparse linear model. We adopt the alternating direction method of multipliers and convert the original optimization problem into a sequential L1 penalized least square minimization problem, which can be efficiently solved by linearization algorithm. A multistage screening approach is adopted for further acceleration. Besides the sparse linear model estimation, we also provide the extension of these Lasso variants to sparse Gaussian graphical model estimation including TIGER and CLIME using either L1 or adaptive penalty. Missing values can be tolerated for Dantzig selector and CLIME. The computation is memoryoptimized using the sparse matrix output.
Package details 


Author  Xingguo Li, Tuo Zhao, Lie Wang, Xiaoming Yuan and Han Liu 
Date of publication  20141019 01:53:12 
Maintainer  Xingguo Li <[email protected]> 
License  GPL2 
Version  1.5.0 
Package repository  View on CRAN 
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