typeof2

object

<p>Returns either "numeric" (double or integer), "factor", "character", "logical", "special" (mode numeric, but neither double nor integer) or "" (otherwise).
<code>missRanger</code> requires this information to deal with response types not natively supported by <code>ranger</code>.</p>

Alternative implementation of the beautiful
'MissForest' algorithm used to impute mixed-type data sets by chaining
random forests, introduced by Stekhoven, D.J. and Buehlmann, P. (2012)
<doi:10.1093/bioinformatics/btr597>. Under the hood, it uses the
lightning fast random jungle package 'ranger'. Between the iterative
model fitting, we offer the option of using predictive mean matching.
This firstly avoids imputation with values not already present in the
original data (like a value 0.3334 in 0-1 coded variable).  Secondly,
predictive mean matching tries to raise the variance in the resulting
conditional distributions to a realistic level. This would allow e.g.
to do multiple imputation when repeating the call to missRanger().  A
formula interface allows to control which variables should be imputed
by which.

Michael Mayer

typeof2: A version of `typeof` internally used by `missRanger`.

Description

Usage

Arguments

Value