On Tue, 17 May 2011, Daniela Tatiane dos Santos wrote:
I estimated a model with quadratic and linear adjustment, using
consumption as a function of income per capita. However, I would
like the adjustment was cubic.
Then just add a cubic term?
x_cubed = x^3
We can't have a menu item for each and every mathematical
transformation: use /Add/Define new variable, or use the console,
or a script.