A test dataset containing a data.frame how it should ideally be arranged
to work with datplot. Data are gathered from the Beazley Archive Pottery
Database (BAPD) -- https://www.carc.ox.ac.uk/carc/pottery and
transformed to work with datplot.
A data frame with 1000 rows and 4 variables
Source
https://www.carc.ox.ac.uk/carc/pottery
Details
Identifier (Vase.Number in BAPD)
Technique: Sample contains only red- or blackfigured objects
DAT_min. Integer: lower range of the dating, BCE in negative numbers
DAT_max. Integer: upper range of the dating, BCE in negative numbers