CRAN release 0.2.7

• Bug fix for GAM-based losses
• Replaces gbm implementation with xgboost using a custom loss function
• Adds vignette for estimation of flexible ITRs via xgboost

CRAN Release 0.2.6

• Various small improvements/bug fixes
• Added changes to reflect the incoming JSS publication related to this package
• The DOI in the CITATION is for a new JSS publication that will be registered after
  publication on CRAN.

CRAN Release 0.2.5

• Adds utilities for construction of augmentation functions and propensity score fitting functions
• Adds vignette for multi-category treatments and for usage of augmentation/propensity score utilities
• Various bug fixes

CRAN Release 0.2.4

• Added warning for use of Harrell's procedure in high dimensions
• Changed default value for 'train.fraction' to 0.75 from 0.5 in 'validate.subgroup'
• Minor improvements to plotting for 'subgroup_validated' objects

CRAN Release 0.2.3

• Fixes trt factor level reordering issue for plots

CRAN Release 0.2.2

• Fixes model printing error
• Improves subgroup.summarize() output

CRAN Release 0.2.1

• Fixes default argument bug for r-oldrel + windows

CRAN Release 0.2.0

• Simplified plot labeling
• Added clarifications to documentation
• Added customized loss function option
• Added options for count outcomes via Poisson negative log-likelihood as the loss
• Added treatment effect calculation based on estimated benefit scores
• Clarified/improved printing
• Improved numerical stability of weighted.ksvm

CRAN release 0.1.5

• Added printing of subgroup_validated results for quantile cutoffs via the which.quant argument

CRAN release 0.1.4

• add quantile and median cutpoints as options
• fixes subgroup effect calculation to account for weights
• add conditional plots for fitted and validated objects