<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def stat(self, overall_param=None, class_param=None, class_name=None):
 """ Print statistical measures table. :param overall_param : overall parameters list for print, Example : ["Kappa","Scott PI] :type overall_param : list :param class_param : class parameters list for print, Example : ["TPR","TNR","AUC"] :type class_param : list :param class_name : class name (sub set of classes), Example :[1,2,3] :type class_name : list :return: None """

        classes = class_filter(self.classes, class_name)
        print(
            stat_print(
                classes,
                self.class_stat,
                self.overall_stat,
                self.digit, overall_param, class_param))