# Variable Selection using the Pivotal Information Criterion

## Documentation for package ‘picreg’ version 0.1.3

- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Package NEWS.

## Help Pages

assess | Assess performance of a 'pic' fit.
assess.pic | Assess performance of a 'pic' fit.
baseline_functions | Breslow baseline cumulative hazard and survival.
BinomialExample | Small binary-classification dataset for the Binomial section of the vignette.
coef.pic | Coefficients of a fitted pic model.
concordance_index | Harrell's concordance index.
CoxExample | Small survival dataset for the Cox section of the vignette.
cox_partial_log_likelihood | Breslow partial log-likelihood (negative, normalized by 'n').
feature_effects_on_survival | Effect of one feature on the Cox survival curve.
lambda_pdb | Pivotal Detection Boundary regularization selector
pdb_asymptotic | Asymptotic behavior of the PDB null distribution.
pdb_summary | Summary of the PDB lambda selector.
phase_transition | Phase-transition analysis of support recovery.
pic | Sparse linear regression using the Pivotal Information Criterion.
pic_families | GLM families for pic — descriptor layer.
pic_methods | S3 methods for fitted pic objects.
pic_penalties | Sparsity-inducing penalties for pic.
pic_plots | Plot methods for pic fits and diagnostics.
pic_survival | Survival utilities for the Cox family.
plot.pic | Horizontal lollipop plot of the non-zero coefficients of a pic fit.
plot.pic.lambda_pdb | Plot the PDB null distribution.
plot.pic.pdb_asymptotic | Plot of the PDB asymptotic behavior.
plot.pic.phase_transition | Phase-transition plot for a 'pic.phase_transition' object.
plot_baseline | Plot Cox baseline cumulative hazard and baseline survival.
plot_survival_curves | Plot subject-specific Cox survival curves.
predict.pic | Linear predictor / response prediction for a pic fit.
predict_survival_function | Survival curves for new data from a fitted Cox pic model.
print.pic.family | Pretty-print a pic family descriptor.
print.pic.pdb_asymptotic | Print PDB asymptotic diagnostic.
print.pic.phase_transition | Print phase-transition analysis.
print.summary.pic | Print a 'summary.pic' object.
QuickStartExample | Small Gaussian dataset for the introductory vignette.
summary.pic | Summarize a fitted pic model.