cov_train               3 sets of covariates for training data set
cov_valid               3 sets of covariates for validation data set
data_test               7 sets of PRSs for test dataset and target
                        phenotype
data_train              7 sets of PRSs for training data set and target
                        phenotype
data_valid              7 sets of PRSs for validation dataset and
                        target phenotype
model_configuration     model_configuration function
model_configuration2    model_configuration2 function
model_evaluation        model_evaluation function
predict_validation      target phenotype and 127 sets of model
                        configurations based on validation dataset
