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我有以下输入值，并希望预测时间戳列表中存在的值的湿度值

startDate = "2013-01-01"
endDate = "2013-01-01"
knownTimestamps = ['2013-01-01 00:00','2013-01-01 01:00','2013-01-01 02:00','2013-01-01 03:00','2013-01-01 04:00',
               '2013-01-01 05:00','2013-01-01 06:00','2013-01-01 08:00','2013-01-01 10:00','2013-01-01 11:00',
               '2013-01-01 12:00','2013-01-01 13:00','2013-01-01 16:00','2013-01-01 17:00','2013-01-01 18:00',
               '2013-01-01 19:00','2013-01-01 20:00','2013-01-01 21:00','2013-01-01 23:00']
humidity = ['0.62','0.64','0.62','0.63','0.63','0.64','0.63','0.64','0.48','0.46','0.45','0.44','0.46','0.47','0.48','0.49','0.51','0.52','0.52']
timestamps = ['2013-01-01 07:00','2013-01-01 09:00','2013-01-01 14:00','2013-01-01 15:00','2013-01-01 22:00']

我正在使用以下函数在 python 中使用 AR 模型预测湿度值

from statsmodels.tsa.arima_model import ARIMA
def predictMissingHumidity(startDate, endDate, knownTimestamps, humidity, timestamps):
    data_prediction = pd.DataFrame({'knownTimestamps': knownTimestamps,'humidity': humidity})
    print(data_prediction.head(10))
    history = [float(x) for x in data_prediction.humidity]
    predictions = []
    test = timestamps
    for t in range(len(test)):
        model = ARIMA(history, order=(2,2,0))
        model_fit = model.fit(disp=0)
        output = model_fit.forecast()
        yhat = output[0]
        predictions.append(float(yhat))
    print(predictions)
    return predictions

该模型为时间戳列表中的值预测相同的湿度值。 

 res = predictMissingHumidity(startDate, endDate, knownTimestamps, humidity, timestamps) 
 print(res)


 output = [0.5287247355700563, 0.5287247355700563, 0.5287247355700563,
 0.5287247355700563, 0.5287247355700563]

有人可以帮我解决我哪里出错了吗

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1 回答 1

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对我来说，看起来你只是重复相同的计算 n 次，其中 n 是 len(test)。迭代变量 t 从未使用过，并且所有参数每次都相同。

于 2018-06-13T13:34:52.747 回答