Python 将类 'pandas.indexes.numeric.Int64Index' 转换为 numpy
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Convert class 'pandas.indexes.numeric.Int64Index' to numpy
提问by Chris Parry
I am isolating some row ids from a Pandas dataframe, like this:
我正在从 Pandas 数据框中隔离一些行 ID，如下所示：
data = df.loc[df.cell == id]
rows = df.index
print(type(rows))
< class 'pandas.indexes.numeric.Int64Index'>
I want to convert rows to a numpy array so I can save it to a mat file using sio.savemat. This is returning an error though:
我想将行转换为 numpy 数组，以便可以使用 sio.savemat 将其保存到 mat 文件中。这虽然返回一个错误：
row_mat = rows.as_matrix()
AttributeError: 'Int64Index' object has no attribute 'as_matrix'
What is the correct way, please? Thanks
请问正确的做法是什么？谢谢
回答by user3404344
try rows = df.index.valuesinstead
尝试rows = df.index.values代替
