sjmisc: Data and Variable Transformation Functions

New functions

• round_num() to round only numeric values in a data frame.

General

• Improved performance for merge_df(). Furthermore, add_rows() was added as alias for merge_df().
• merge_df() resp. add_rows() now create a unique id-name instead of dropping the ID-variable, in case id has the same name of any existing variables in the provided data frames.
• Improved performance for descr() and minor changes to the output.

Support for mids-objects (package mice)

Following functions now also work on mids-objects, as returned by the mice()-function:

• row_count(), row_sums(), row_means(), rec(), dicho(), center(), std(), recode_to() and to_long().

Changes to functions

• The weight.by-argument in frq() now should be a variable name from a variable in x, and no longer a separate vector.

Bug fixes

• descr() does not work with character vectors, so these are being removed now.