Update to mice 3.16.4

DESCRIPTION

@@ -1,8 +1,8 @@
 Package: mice
 Type: Package
-Version: 3.16.3
+Version: 3.16.4
 Title: Multivariate Imputation by Chained Equations
-Date: 2023-08-03
+Date: 2023-08-08
 Authors@R: c(person("Stef", "van Buuren", role = c("aut","cre"),
     email = "[email protected]"),
     person("Karin", "Groothuis-Oudshoorn", role = "aut",

NEWS.md

@@ -1,3 +1,5 @@
+# mice 3.16.4
+
 **Imputing categorical data by predictive mean matching**. Predictive mean matching (PMM) is the default method of `mice()` for imputing numerical variables, but it has long been possible to impute factors. This enhancement introduces better support to work with categorical variables in PMM. The **former system** translated factors into integers by `ynum <- as.integer(f)`. However, the order of integers in `ynum` may have no sensible interpretation for an unordered factor. The **new system** quantifies `ynum` and could yield better results because of higher $R^2$. The method calculates the canonical correlation between `y` (as dummy matrix) and a linear combination of imputation model predictors `x`. The algorithm then replaces each category of `y` by a single number taken from the first canonical variate. After this step, the imputation model is fitted, and the predicted values from that model are extracted to function as the similarity measure for the matching step.
 
 The method works for both ordered and unordered factors. No special precautions are taken to ensure monotonicity between the category numbers and the quantifications, so the method should be able to preserve quadratic and other non-monotone relations of the predicted metric. It may be beneficial to remove very sparsely filled categories, for which there is a new `trim` argument. 

README.Rmd

@@ -23,7 +23,7 @@ set.seed(1)
 [![CRAN_Status_Badge](https://www.r-pkg.org/badges/version/mice)](https://cran.r-project.org/package=mice)
 [![](https://cranlogs.r-pkg.org/badges/mice)](https://cran.r-project.org/package=mice)
 [![R-CMD-check](https://github.com/amices/mice/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/amices/mice/actions/workflows/R-CMD-check.yaml)
-[![](https://img.shields.io/badge/github%20version-3.16.3-orange.svg)](https://amices.org/mice/)
+[![](https://img.shields.io/badge/github%20version-3.16.4-orange.svg)](https://amices.org/mice/)
 <!-- badges: end -->
 
 ## [Multivariate Imputation by Chained Equations](https://amices.org/mice/)

README.md

@@ -7,7 +7,7 @@
 [![CRAN_Status_Badge](https://www.r-pkg.org/badges/version/mice)](https://cran.r-project.org/package=mice)
 [![](https://cranlogs.r-pkg.org/badges/mice)](https://cran.r-project.org/package=mice)
 [![R-CMD-check](https://github.com/amices/mice/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/amices/mice/actions/workflows/R-CMD-check.yaml)
-[![](https://img.shields.io/badge/github%20version-3.16.3-orange.svg)](https://amices.org/mice/)
+[![](https://img.shields.io/badge/github%20version-3.16.4-orange.svg)](https://amices.org/mice/)
 <!-- badges: end -->
 
 ## [Multivariate Imputation by Chained Equations](https://amices.org/mice/)