Python 如何修复这些元素？
获取某些元素的错误Python 如何修复这些元素？,python,pandas,csv,Python,Pandas,Csv,获取某些元素的错误 import pandas as pd import numpy as np from scipy.signal import argrelextrema import matplotlib.pyplot as plt import datetime #Import our historical data data = pd.read_csv('Data/sample.csv') data.columns = [['Date','open','high','low','cl
import pandas as pd
import numpy as np
from scipy.signal import argrelextrema
import matplotlib.pyplot as plt
import datetime
#Import our historical data
data = pd.read_csv('Data/sample.csv')
data.columns = [['Date','open','high','low','close','vol']]
data = data.drop_duplicates(keep=False)
data.Date = pd.to_datetime(data.Date,format='%Y.%m.%d %H:%M:%S.%f')
data = data.set_index(data.Date)
data = data[['open', 'high', 'close', 'vol']]
price = data.close.iloc[:100]
# Find our relative extrema
max_idx = argrelextrema(price.values,np.greater,order=1)
min_idx = argrelextrema(price.values,np.less,order=1)
print(max_idx)
print(min_idx)
Traceback (most recent call last):
File "untitled.py", line 9, in <module>
data.columns = [['Date','open','high','low','close','vol']]
ValueError: Length mismatch: Expected axis has 1 elements, new values have 6 elements
回溯（最近一次呼叫最后一次）：
文件“untitled.py”，第9行，在
data.columns=[['Date'，'open'，'high'，'low'，'close'，'vol']]
ValueError:长度不匹配：预期轴有1个元素，新值有6个元素
data.columns=['Date'，'open'，'high'，'low'，'close'，'vol']
\tdata=pd.read\u csv（'data/sample.csv'，sep=r'\t'）
data.columns=['Date'，'open'，'high'，'low'，'close'，'vol']
数据的输入。head（）data=pd.read\u csv（'data/sample.csv'）print（data.head（））