对我来说真是个问题!我有df_000001
这样的话:
date open high close low volume amount price_change
2000-01-04 1368.69 1407.52 1406.37 1361.21 903402300 5801550000
2000-01-05 1407.83 1433.78 1409.68 1398.32 1057998400 8653075000
2000-01-06 1406.04 1463.95 1463.94 1400.25 1348051500 10238351000
2000-01-07 1477.15 1522.83 1516.60 1477.15 3451569900 22007478000
它的索引很清楚:
Index(['2000-01-04', '2000-01-05', '2000-01-06', '2000-01-07'])
虽然我得到了另一个df,类似于df_000001
:
date open high close low volume amount price_change
2010-01-04 33.62 34.27 33.50 33.42 13469261.00 549593152.00 -0.12
2010-01-05 33.76 34.97 34.69 33.72 18374008.00 760548096.00 0.93
2010-01-06 34.85 35.87 35.11 34.63 21924930.00 932180353.00 0.26
2010-01-07 35.84 36.34 34.42 34.23 21769572.00 925199040.00 -1.42
它的索引是:
DatetimeIndex(['2010-01-04', '2010-01-05', '2010-01-06', '2010-01-07'])
现在我写了一个for循环迭代:
x1 = [df_000001.loc[si]['close'] for si in df.index]
这意味着要提取df_000001
列,其日期索引相同df
。
即使我努力了,它也只是一直运行错误:
KeyError: 'the label [2010-01-04 00:00:00] is not in the [index]'
我该如何解决这个问题?