Interaction terms ... in a regression model. They represent the change in the slope or the effect of one variable on the outcome depending on the value of another variable. For example, if you ...

Trend Modeling: A series of polynomial regression models (linear, quadratic, cubic) are trained to model the long-term growth trend in CO₂. Residuals and prediction errors (RMSE, MAPE) are used to ...

Using the boundaries of the intervals of the splines, we fit a smooth cubic interpolation function ... We compare the results that we got from applying the polynomial regression model with the splines ...

Using the boundaries of the intervals of the splines, we fit a smooth cubic interpolation function ... We compare the results that we got from applying the polynomial regression model with the splines ...