小编ava*_*vaj的帖子

我有这个代码,我想从文件中删除列'timestamp':u.data但不能.它显示错误
"ValueError:labels ['timestamp']未包含在轴中"我如何纠正它

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt 
plt.rc("font", size=14)
from sklearn.linear_model import LinearRegression
from sklearn.linear_model import Ridge
from sklearn.cross_validation import KFold
from sklearn.cross_validation import train_test_split



data = pd.read_table('u.data')
data.columns=['userID', 'itemID','rating', 'timestamp']
data.drop('timestamp', axis=1)


N = len(data)
print data.shape
print list(data.columns)
print data.head(10)