Constrained ordinary least squares is performed. One constraint is that all beta coefficients (including the constant) cannot be negative. They can be either 0 or strictly positive. Another constraint is that the sum of the beta coefficients equals a constant. References: Hansen, B.E. (2022). Econometrics, Princeton University Press.
Michail Tsagris mtsagris@uoc.gr
Michail Tsagris <mtsagris@uoc.gr>.
| Package: | cols |
| Type: | Package |
| Version: | 1.5 |
| Date: | 2024-12-20 |
Hansen, B. E. (2022). Econometrics, Princeton University Press.