task8.py 文件源码

def drawGraphsPeriod(data, start, end, date):
    '''
    ??????? ?????? ?????? ????????-??????? ?? ??????
    :param data: ?????? ??
    :param start: ?????? ?????
    :param end: ????? ?????
    :param date: ????
    :param return: ?????? ?? ??????????
    '''
    plt.clf()

    for i in xrange(3, 4):
        actual, predictions = getData(list(data['p' + str(i) + '_Fraud'][start:end]), list(data['CLASS'][start:end]))

        precision, recall, thresholds = precision_recall_curve(actual, predictions)

        plt.plot(recall, precision, label='%s PRC' % ('p' + str(i) + '_Fraud'))

    plt.title('Precision-recall curve for ' + str((date - datetime.timedelta(days=1)).strftime('%Y/%m/%d')))
    plt.legend(loc='lower right', fontsize='small')
    plt.xlim([0.0,1.0])
    plt.ylim([0.0,1.0])
    plt.xlabel('Recall')
    plt.ylabel('Precision')
    plt.show()