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VsusP 1.1.0

Gaussian fitting and summaries

• Add FitRidge(), FitHorseshoe() and FitSpikeSlab() with explicit priors, intercept draws and separate chain axes. Existing bayesreg defaults remain.
• Add coefficient summaries, posterior and sparse prediction, PosteriorDraws() and ChainDiagnostics(). Add coefficient, inclusion, trace and autocorrelation plots that return the displayed values invisibly.

Selection methods

• Add TwoMeansBeta() for basic two-means selection and SpikeSlabSelection() for exact-zero inclusion summaries and visited-model frequencies.
• Add SAVS and the adaptive-L1 DSS approximation as separate methods that can return an empty selection. Document scaling, tuning and numerical limits.
• Add exact one-dimensional clustering, recursive-pair refinement and S2MSensitivity(). Randomized kmeans and legacy small-set stopping remain the defaults; sensitivity summaries do not choose an optimal threshold.
• Allow all-zero S2M draws with zero.draws = "empty"; default rejection remains.

Fixes

• Retain the saved S2M noise set at recursive stopping, following Li and Pati (2017), Section 2.2.1, doi:10.1016/j.csda.2016.10.008. The previous count used the smaller cluster from the stopping split and could select too many signals. The strict center-gap comparison is unchanged.
• Handle distinct initial pairs and indivisible recursive candidates. Reject unsupported constant-magnitude draws; accept explicit H = 0 selections.
• Validate dimensions, finite values, scalar counts and tuning ranges.
• Return consistent selection summaries and use every returned sampler draw.
• Accept prior aliases rr, hs and hs+; preserve predictor names without allowing a predictor name to replace the response.
• Correct citations, draw orientation and tuning-plot descriptions. Document tie conventions and empty-model limits.

Documentation and checks

• Add eight reproducible figures and worked fitting, selection and prediction examples. Retain the exploratory pilot’s outcomes and limitations.
• Remove tracked build products and duplicate documentation. Run one package check per CI job and retain strict test-count and coverage verification.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.