stddev_anomaly.py 文件源码

def ssh():
    from random import randint, seed
    import pandas as pd
    import matplotlib.pyplot as plt

    seed(1)
    df = pd.DataFrame(pd.read_csv('ssh.csv', sep=';'))[:20000]
    y = df.value.as_matrix()
    y_raw = numpy.flipud(y)
    y = numpy.append(y_raw, y_raw)
    y = numpy.append(y, y_raw)
    for i in range(len(y)):
        y[i] += randint(-10, 10)
    for i in range(46100, 46120):
        y[i] += 100
        y[i] *= 10

    x = [i for i in range(0, len(y) * 2, 2)]
    series = list(zip(x, y))
    result = StddevAnomaly().search_anomaly({}, len(series), series)
    print(result)
    plt.plot(*zip(*series))
    plt.plot(*zip(*result), 'x')
    plt.show()