pandas IndexError：访问pandas.DataFrame时索引越界
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IndexError: indices are out-of-bounds when accessing pandas.DataFrame
提问by Klausos Klausos
I want to access values of data by indices (xiand yishould be row indices), but I get the error IndexError: indices are out-of-bounds.
我想通过索引（xi并且yi应该是行索引）访问数据的值，但是我得到了错误IndexError: indices are out-of-bounds。
for xi, yi in kd:
X, y = data[xi], y_labs[yi]
- data is pandas.core.frame.DataFrame
- kd is numpy.ndarray
- y_labs is numpy.ndarray
- 数据是 pandas.core.frame.DataFrame
- kd 是 numpy.ndarray
- y_labs 是 numpy.ndarray
回答by priya khokher
You need to initialize your empty dataframe with index, and then access its locations. For instance
您需要使用索引初始化空数据框，然后访问其位置。例如
data = pd.DataFrame(index = range(len(yourFile)),columns = ['col1','col2'])
When you don't enter the index, pandascan't access cells or rows as there are not any.
当您不输入索引时，pandas无法访问单元格或行，因为没有任何单元格或行。
