O/T] regression data set

Dear R People:

There is a regression data set in which there are 4 sets of data and
the x values are the same in all 4.  The y values change somewhat.

I thought it was the Longley data set, but that is US economic data.

Does anyone know the name of that other set, please?

Thanks,
Erin

Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess at gmail.com