Implements constrained phenotypic selection index methods from Chapter 3. These methods allow breeders to impose restrictions on genetic gains or specify target gains while maintaining selection efficiency.
Methods included: - Restricted Linear Phenotypic Selection Index (RLPSI) - Kempthorne & Nordskog (1959) - Predetermined Proportional Gains (PPG-LPSI) - Tallis (1962) - Desired Gains Index (DG-LPSI) - Pesek & Baker (1969)
All implementations use C++ primitives for mathematical operations.
Kempthorne, O., & Nordskog, A. W. (1959). Restricted selection indices. Biometrics, 15(1), 10-19.
Tallis, G. M. (1962). A selection index for optimum genotype. Biometrics, 18(1), 120-122.
Pesek, J., & Baker, R. J. (1969). Desired improvement in relation to selection indices. Canadian Journal of Plant Science, 49(6), 803-804.
Ceron-Rojas, J. J., & Crossa, J. (2018). Linear Selection Indices in Modern Plant Breeding. Springer International Publishing. Chapter 3.