Question

好一阵子，直到我的整个代码块都让我头疼了好几天，我才接触代码。它一直有效直到遇到resample的以下挑战。

这是错误：

文件“ C：\ Users \ JonesDavid \ Local \ Programs \ Python \ Python35 \ lib \ site-packages \ pandas \ core \ generic.py”，行5522，重采样base=base, key=on, level=level)

文件“ C：\ Users \ JonesDavid \ Local \ Programs \ Python \ Python35 \ lib \ site-packages \ pandas \ core \ resample.py”，第999行，重采样return tg._get_resampler(obj, kind=kind)

_get_resampler "but got an instance of %r" % type(ax).__name__)中的文件“ C：\ Users \ JonesDavid \ Local \ Programs \ Python \ Python35 \ lib \ site-packages \ pandas \ core \ resample.py”第1116行

TypeError ：仅对DatetimeIndex，TimedeltaIndex或PeriodIndex有效，但具有“ Index”的实例

在doForecast中：tsWeekly = ts.resample('W-MON').last())
主要：doForecast(panel)
在：main()

这是我的整个代码减去与绘图相关的部分：

import pandas_datareader.data as web
from datetime import datetime
# removed imports related to plotting

TRAIN_SIZE = 0.2
FORECAST_STEPS = 20
STOCKS_PREDICT = ['SPY', 'AAPL']


def downloadData(startDate, endDate):

    histPanel = web.DataReader(STOCKS_PREDICT, 'iex' , startDate, endDate)
    contains_condition = ((histPanel.isnull()) | (histPanel == 0)).any(axis=1)
    to_keep = contains_condition[contains_condition == False].index
    histPanel = histPanel.loc[to_keep]

    return histPanel


print(downloadData("01/01/2017","01/01/2019"))


def doForecast(Panel):

    closeDF = Panel['close']
    ts = closeDF['SPY']
    tsWeekly = ts.resample('W-MON').last() # TypeError here
    values = tsWeekly.tolist()

    # removed unrelevant plotting code


def main():
    startDate = datetime(2017, 1, 1)
    endDate = datetime.today()

    panel = downloadData(startDate, endDate)

    doForecast(panel)


if __name__ == '__main__':
    main()

在熊猫中调用resample（）时发生TypeError

0 个答案: