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picasso (version 2.0.1)

Sparse Learning with Convex and Concave Penalties

Description

Fast regularization paths for sparse Gaussian, binomial, Poisson, square-root-lasso, and multinomial models with lasso, smoothly clipped absolute deviation, or minimax concave penalties. Computation uses pathwise coordinate optimization, active-set updates, warm starts, screening rules, Proximal Newton iterations, quadratic majorization, and adaptive local linear approximation where appropriate. Core solvers are implemented in C++, and coefficient paths are returned as Matrix-compatible objects.

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Version

Install

install.packages('picasso')

Monthly Downloads

351

Version

2.0.1

License

GPL-3

Maintainer

Tuo Zhao

Last Published

July 25th, 2026

Functions in picasso (2.0.1)

print.gaussian

Print Method for an Object with S3 Class "gaussian"
predict.logit

Prediction Method for an Object with S3 Class "logit"
predict.gaussian

Prediction Method for an Object with S3 Class "gaussian"
print.logit

Print Method for an Object with S3 Class "logit"
plot.gaussian

Plot Method for an Object with S3 Class "gaussian"
plot.logit

Plot Method for an Object with S3 Class "logit"
print.poisson

Print Method for an Object with S3 Class "poisson"
print.sqrtlasso

Print Method for an Object with S3 Class "sqrtlasso"
coef.logit

Extract Coefficients from an Object with S3 Class "logit"
coef.gaussian

Extract Coefficients from an Object with S3 Class "gaussian"
picasso-package

picasso: Sparse Learning with Convex and Non-Convex Penalties
picasso

Fit Sparse Regression Models with Convex and Non-Convex Penalties
eyedata

Bardet-Biedl Syndrome Gene Expression Data from Scheetz et al. (2006)
coef.poisson

Extract Coefficients from an Object with S3 Class "poisson"
coef.sqrtlasso

Extract Coefficients from an Object with S3 Class "sqrtlasso"
assess.picasso

Model Assessment for picasso Fits
cv.picasso

Cross-Validation for picasso
multinomial-methods

Methods for Multinomial picasso Fits
plot.sqrtlasso

Plot Method for an Object with S3 Class "sqrtlasso"
plot.poisson

Plot Method for an Object with S3 Class "poisson"
predict.poisson

Prediction Method for an Object with S3 Class "poisson"
predict.sqrtlasso

Prediction Method for an Object with S3 Class "sqrtlasso"