Lactation Curve Model Fitting for Dairy Animals // Fits up to 20 nonlinear lactation curve models to dairy animal milk yield data. Models fitted include exponential, polynomial, mixed logarithmic, inverse polynomial, and sigmoid families published between 1923 and 2000. Supports batch processing of multiple animals from a single CSV file, with flexible selection of animals and models. Produces per-animal parameter tables, goodness-of-fit metrics including R-squared (R2), Root Mean Square Error (RMSE), Akaike Information Criterion (AIC), Bayesian Information Criterion (BIC), and a serial autocorrelation statistic, 15 diagnostic figures, and combined cross-animal comparison outputs. References: doi:10.1085/jgp.5.4.441, doi:10.1038/216164a0, doi:10.1016/0301-6226(87)90003-0, doi:10.4141/cjas87-067, doi:10.3168/jds.S0022-0302(00)75136-8.