New projpred version (2.9.0) on CRAN

A new projpred version (2.9.0) has been released on CRAN. The most important changes are:

  • Subsampled PSIS-LOO CV (see argument nloo of cv_varsel()) has been fixed and is not experimental anymore. Thanks to @avehtari for doing the majority of the work behind this!
  • Performance statistic "R2" (R-squared) has been added (see argument stats of summary.vsel() and plot.vsel(); argument stat of suggest_size() supports it as well). Thanks to @avehtari for suggesting and implementing this!
  • Argument type of summary.vsel() has gained options "diff.lower" and "diff.upper".
  • Argument deltas of plot.vsel() has gained option "mixed". Thanks again to @avehtari for the suggestion and a first implementation!

See the changelog for details.

Starting with this release, Osvaldo Martin is the new maintainer of projpred. Thanks for taking over!

Thank you Frank for maintaining it as long as you have and thank you Osvaldo!

Thanks @fweber144 for all your hard work on projpred!