Regression analysis is a statistical technique used to find relationships between variables for the purpose of predicting future values.
It presupposes that a linear relationship exists between one or more independent (casual) variables, which are predicted to affect the dependent (target) variable-in our instance, future HR demand for personnel (i.e., the number of personnel).
Regression analysis is a very effective quantitative forecasting technique for short-, medium-, and long-range time horizons and can be easily updated and changed.
Regression analysis is a method of characterizing the relationship between two or more variables, and then using this characterization as a predictor.