Chen-et-al-2023a Prediction of persistency for day 305 in lactation at the moment of the insemination decision Codes (Pyspark) 1. Data Editing 2. Data Fitting 3. Fitting Result Editing Prediction models for decay-305 Linear regression, ridge regression, lasso regression and random forest DIM 50 DIM 75 DIM 100 DIM 125 Prediction models for M305 Only linear regression DIM 50, 75, 100 and 125 Supplementary tables