Graphics
Model: y = f(x;beta) + e  =  beta(1) + beta(2) cos[2 pi x / 12] + beta(3) sin[2 pi x / 12]
											beta(5) cos[2 pi x / beta(4)] + beta(6) sin[2 pi x / beta(4)]
											beta(8) cos[2 pi x / beta(7)] + beta(9) sin[2 pi x / beta(7)] + e

Fitted and Observed Values
versus
Predictor Variable


Fitted and Observed Values vs. Predictor Variable
Residuals
versus
Predictor Variable


Residuals vs. Variables