Function to generate multiple data definitions of the same type

[kgoldfeld]

If I want a definition table that will generate a large number of similar variables (such as g1, ..., g4 below), the only way to currently do this is by calling defData for each instance. If they are truly identical, I'd like to make it possible with a single call.

   varname     formula variance        dist     link
1:      g1 1/3;1/3;1/3        0 categorical identity
2:      g2 1/3;1/3;1/3        0 categorical identity
3:      g3 1/3;1/3;1/3        0 categorical identity
4:      g4 1/3;1/3;1/3        0 categorical identity
5:       a         1;1        0   trtAssign identity
6:       y        0.10        0      binary identity

[kgoldfeld]

@assignUser I created functions defRepeat and defRepeatAdd in branch def-data-enhancements. I took a look at creating a test, but not entirely clear one would be appropriate here since the functions are largely derivative of defData and defDataAdd, respectively. I couldn't find a unit test for defData or defDataAdd, which I was hoping would serve as a model. If you have a chance, take a quick look, and let me know what you think.

[assignUser]

#134