screen_cvsqrt.lasso: Cross-validated Lasso screening and sqrt-truncation.
Description
Cross-validated Lasso screening and sqrt-truncation.
Usage
screen_cvsqrt.lasso(x, y)
Arguments
x
Predictor matrix.
y
Response vector.
Value
Active-set.
Details
Computes Lasso coefficients (cross-validation optimal lambda). Truncates
smallest coefficients to zero, such that there are no more than sqrt(n)
non-zero coefficients.