To accommodate the potential non-linear covariate effect, we consider a non-parametric regression model for panel count data. The regression B-splines method is used to estimate the regression ...

Clifford M. Hurvich, Chih-Ling Tsai, Regression and Time Series Model Selection in Small Samples, Biometrika, Vol. 76, No. 2 (Jun., 1989), pp. 297-307 Free online reading for over 10 million articles ...

This shows how well our model predicts or forecasts the future sales, suggesting that the explanatory variables in the model predicted 68.7% of the variation in the dependent variable.

Often, regression models that appear nonlinear upon first glance are actually linear. The curve estimation procedure can be used to identify the nature of the functional relationships at play in ...