>Hmmm... an interesting approach, but I'm not sure they are mathematically equivalent.
Not having used regressions in practice, I am not sure either. But in general, lots of things can be done converting back and forth, similar to the way I explained.
Perhaps you can do a test in Excel, where, I believe, all required functions are available, and see whether you get identical results.
Hilmar.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
