Additional file 2 of Maximizing efficiency in sunflower breeding through historical data optimization

Additional file 2. Predictive ability of the gradient boosting machine model across all scenarios and repetitions for simultaneous optimization of training set (TRS) size and composition. The same columns as in Additional file 1 were used with the exception of "Method_size_optimization" (optimization method used to find optimal TRS size) and "Method_composition_optimization" (optimization method used to find optimal TRS composition).