vtreat 1.0.4 2017/05/05

• Add data.table as an optional row-binder.
• Declare an R version.

vtreat 1.0.3 2017/03/10

• parallel indicator calculation.
• add optional warning on encountering novel levels in prepare.

vtreat 1.0.2 2017/01/20

• bind options.
• fix deps.
• restore parallel test.
• kWayStratifiedY performance fix from @khotilov Vadim Khotilovich.

vtreat 1.0.1 2017/10/16

• Minor documentation fixes.
• rm data.table (possibly related to issues 2413 or 2418).

vtreat 1.0.0 2017/10/04

• Minor documentation fixes.
• More work on novel values for non-centered custom coders.
• Numeric custom coders.
• Isotone examples.

vtreat 0.6.0 2017/09/20

• Add codeRestriction option to design steps.
• Prepare for custom models.
• Prefer data.table::rbindlist() for assembling frames.
• Add forceSplit mode.

vtreat 0.5.32 2017/06/13

• Add codeRestriction option to prepare().

vtreat 0.5.31 2017/04/13

• make prueSig an optional argument in prepare, and force by-name access.
• Remove left.op=TRUE from findInterval in “vtreat Rare Levels” vignette (seems to be a new addition to findInterval, so fails CRAN check r-oldrel-windows-ix86+x86_64).

vtreat 0.5.30 2017/01/21

• General improvements in documentation and vignettes.
• Document saving/loading treatment plans.

vtreat 0.5.29 2016/10/27

• Add ‘rsq’ column to scoreFrame (rsq- for numeric targets, pseudo-rsq for categorical targets).

vtreat 0.5.28 2016/10/24

• Fix treatment of constant columns in cross-partitions.
• Switch doCollar default to FALSE.
• Return indicators on designTreatmentsZ.
• Fix extraDegreesOfFreedom calculation.
• Allow repeated application rows in cross frames.
• Remove lsig and csig from scoreFrame.
• Add meanY to treatmentplan.
• Documentation fixes.

vtreat 0.5.27 2016/08/16

Changes:

• Change catB variables to delta-logit score.
• Fix passing of arguments to parallel prepare, and reduce size of data passed.
• Ensure set of variables consistency in mkCross* methods.
• More parallelization of level significance calculations, and cheaper chi-square test where appropriate.

vtreat 0.5.26 2016/07/10

• Facilities for y-stratified and grouped splitting (useful for unbalanced classes).
• catScaling=TRUE mode uses logistic regression for y-aware variable scaling.
• Fix erroneous bad type warning on date columns.

vtreat 0.5.25 2016/05/02

• Fix bug that caused catB variables to be scored as “insignificant”.
• Add test to check for above bug.
• Expose cross validation controls.
• More guards on significance calculations.

vtreat 0.5.23 2016/04/28

• Fix issue of non-significant variables not being scaled.
• Documentation fixes, document variable types, improve vignettes.
• Minor performance fixes on result accumulation.
• Add optional use of dplyr for row binding (of score report frames).

vtreat 0.5.22 2016/01/07

• Calculations of non catX significances are now deterministic
• Catch mis-naming or non-varying y earlier
• Expose buildEvalSets as a public function
• More tests

vtreat 0.5.21 2015/11/23

• Isolated “cross” or “out of sample” frame generation into mkCrossFrameCExperiment() and mkCrossFrameNExperiment()
• Many small bug fixes and corner cases patched

vtreat 0.5.20 2015/11/05

• Simplified out of sample frame generation
• Added “no-Y” treatment option
• Minor documentation fixes

vtreat 0.5.18 2015/10/07

• Fixed bugs in cross-validated mode
• Force out of sample calculations in more situations
• Fix vignette titles
• Fix documentation
• Do not allow small or insufficiently varying data frames (exact conditions in documentation)

vtreat 0.5.16 2015/09/12

• Unified rare level treatment
• Separate treatment of insignificant levels
• Tests confirming compatibility with ‘data.table’
• More special case hardening
• Over-fit vignette
• Minor documentation fixes

vtreat 0.5.14 2015/09/06

• First CRAN release