Functionality

It also adds an extended toydata data.frame (including variables for day)
Possibility to use a data.table object with overview_tab and overview_na
overview_plot
- some consecutive years were not correctly connected before)
- color argument to color parts of the time lines
- Adjustable dot_size (default is 2)
overview_print
- label to add a cross-reference label
- fontsize to change the font size
- Fixed a small issue that can cause problems with large (and complex) TeX documents
overview_crossplot
- a new function that visualizes basically the same output as overview_crosstab
overview_tab
- if there is a NA in the id variable this observation will be automatically deleted. The user receives a warning.
- possibility to use multiple time arguments
overview_crosstab
- if there is a NA in the id variable this observation will be automatically deleted. The user receives a warning.
overview_na
- Option to generate row_wise NA values
overview_overlap
- New function to compare (at the moment) two data sets using bar graphs (plot_type = "bar") or Venn diagrams (plot_type = "venn")

Bug fixes and issues

We fixed the following bugs and issues:

Fixed bug in overview_tab function
- Internal function returned an integer instead of a date when using multiple time options (also updated the vignettes)
Fixed bug in vignette
- "Having package code which is run as part of the checks and attempts to write to the user library violates the CRAN Policy's"
- "Packages should not write in the user’s home filespace (including
  clipboards), nor anywhere else on the file system apart from the R
  session’s temporary directory (or during installation in the location
  pointed to by TMPDIR: and such usage should be cleaned up)."
Increased the code coverage of units tests to 100%