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mice 3.12.0
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@stefvanbuuren stefvanbuuren released this 14 Nov 19:59
v3.12.0
85881b6

Much faster predictive mean matching

  • The new matchindex C function makes predictive mean matching 50 to 600 times faster.
    The speed of pmm is now on par with normal imputation (mice.impute.norm())
    and with the miceFast package, without compromising on the statistical quality of
    the imputations. Thanks to Polkas Polkas/miceFast#10 and
    suggestions by Alexander Robitzsch. See #236 for more details.

New ignore argument to mice

  • New ignore argument to mice(). This argument is a logical vector
    of nrow(data) elements indicating which rows are ignored when creating
    the imputation model. We may use the ignore argument to split the data
    into a training set (on which the imputation model is built) and a test
    set (that does not influence the imputation model estimates). The argument
    is based on the suggestion in
    #32 (comment). See #32 for
    more background and techniques. Crafted by Patrick Rockenschaub

New filter() function for mids objects

  • New filter() method that subsets a mids object (multiply-imputed data set).
    The method accepts a logical vector of length nrow(data), or an expression
    to construct such a vector from the incomplete data. (#269).
    Crafted by Patrick Rockenschaub.

Changes affecting reproducibility

  • Breaking change: The matcher algorithm in pmm has changed to matchindex
    for speed improvements. If you want the old behavior, specify mice(..., use.matcher = TRUE).

Minor changes

  • Corrected installation problem related to cpp11 package (#286)
  • Simplifies with.mids() by calling eval_tidy() on a quosure. Does not yet solve #265.
  • Improve documentation for pool() and pool.scalar() (#142, #106, #190 and others)
  • Makes tidy.mipo more flexible (#276)
  • Solves a problem if nelsonaalen() gets a tibble (#272)
  • Add explanation to how NAs can appear in the imputed data (#267)
  • Add warning to quickpred() documentation (#268)
  • Styles all sources files with styler
  • Improves consistency in code and documentation
  • Moves internally defined functions to global namespace
  • Solves bug in internal sum.scores()
  • Adds deprecated messages to lm.mids(), glm.mids(), pool.compare()
  • Removes expandcov()
  • Strips out all return() calls placed just before end-of-function
  • Remove all trailing spaces
  • Repairs a bug in the routine for finding the printFlag value (#258)
  • Update URL's after transfer to organisation amices
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