7.00.02.01 - Aster R Results Differ from Native R for - and ! Operators - Aster R

Teradata Aster® R User GuideUpdate 3

prodname
Aster R
vrm_release
7.00.02.01
created_date
December 2017
category
Programming Reference
User Guide
featnum
B700-1033-700K

The unary operators "!" and "-" do not work for non-numeric columns (for example, varchar type).

However, the "!" and "-" operators work for the ta.pull() function when the values in the varchar column are numeric. Because the underlying RODBC protocol changes the data types when imported to the R environment.