NEWS

simputation 0.2.8 (2022-06-16)

Package now depends on R >= 4.0.0
Examples using |> now in stead of magrittr::%>%
fixed bug in impute_knn: VIM backend was ignored. (Thanks to Sander Scholtus and Sigrid van Hoek for reporting)

Updated C-code for compatability with CLANG compiler (Thanks to Brian Ripley for pointing out the specific noncompliance with WRE)

CRAN-requested update, avoiding misuse of 'order' on data.frames (Thanks to Kurt Hornik for reporting).

Updated tests in preparation of the new 'stringsAsFactors=FALSE' policy (thanks to Kurt Hornik)
Fixed parsing error for formulas with very long variable names (Thanks to Karl Dunkle Werner).
Fix: ... was not parsed to 'missForest' in 'impute_mf'.
Fix: Column names with spaces were not handled properly (Thanks to Miles McBain)
Fix: 'impute_proxy' would crash when imputing a character constant.

switched to 'tinytest' testing framework
Fix in impute_median: wrong medians imputed at randomly sorted data (thanks to Ranjeed-S).

new functions 'impute' and 'impute_' use pre-fit models to impute datasets. (Thanks to Max Kuhn for suggesting this).
new utility function 'foretell'. Replacement for 'predict' that always returns values of the predicted type.
bugfix: ... arguments were not passed correctly for linear models.

Added support for ridge/elasticnet/lasso regression (using 'glmnet')
Added support for missForest imputation (using 'missForest')
Added support for imputation using EM-estimated parameters (using 'norm')
'impute_proxy' now supports transformations in the rhs of formula.
'impute_median' gains 'type' argument to specify algorithm for median computation.
New functions 'simputation_capabilities' and 'simputation_suggests' detect which packages supporting imputation methods are available.
Renamed 'na.action' -> 'na_action' for consistency within simputation.
Default 'na_action' for 'impute_cart' is now 'na.rpart'
Default 'na_action' for 'impute_rf' is not 'na.roughfix'
Complete overhaul of function documentation. Now set up systematically with synopsis of methodology where relevant.
Dependencies on larger packages (randomForest, glmnet) moved to 'Suggests'
Fix in 'impute_rf': needed workaround for bug in randomForest 4.6.12 (formulas like Y ~ . - X not handled correctly by predict.randomForest)
Bugfix in 'impute_pmm': argument 'predictor' was ignored.
Bugfix in 'impute_rhd': attributes of 'dat' were not always preserved.

Added na.action option for model-based imputation (thanks to Soogeun Park)
impute_rhd, impute_shd, and impute_knn now have option 'backend="VIM"'
removed call to structure(NULL,*) to comply to changes in R-devel (thanks to Martin Maechler)