我正在跟随教程,但不知道为什么出现了这个错误:
<ipython-input-61-d59f7a5a07ab> in extract_featuresets(ticker)
2 tickers, df = process_data_for_labels(ticker)
3 df['{}_target'.format(ticker)] = list(map(buy_sell_hold,
----> 4 df['{}_{}1d'.format(ticker)],
5 df['{}_{}2d'.format(ticker)],
6 df['{}_{}3d'.format(ticker)],
IndexError: Replacement index 1 out of range for positional args tuple
这是我的代码:
tickers, df = process_data_for_labels(ticker)
df['{}_target'.format(ticker)] = list(map(buy_sell_hold,
df['{}_{}1d'.format(ticker)],
df['{}_{}2d'.format(ticker)],
df['{}_{}3d'.format(ticker)],
df['{}_{}4d'.format(ticker)],
df['{}_{}5d'.format(ticker)],
df['{}_{}6d'.format(ticker)],
df['{}_{}7d'.format(ticker)],))
tickers
而不是ticker
... 注意前一行只解包了一个元素'{}_target'.format(ticker)
。 - RichieV