fann_test_data Test a set of training data and calculates the MSE for the training data &reftitle.description; floatfann_test_data resourceann resourcedata Test a set of training data and calculates the MSE for the training data. This function updates the MSE and the bit fail values. &reftitle.parameters; ann &fann.ann.description; data &fann.train.description; &reftitle.returnvalues; The updated MSE, or &false; on error. &reftitle.seealso; fann_train_on_data fann_train_epoch fann_get_bit_fail fann_get_MSE fann_set_training_algorithm