读取genfromtext缺少连字符的名称

Question

我试图读取以下文件，我试图使用numpy加载数据:

#Frame   HIE_21@O-PHE_32@N-H THR_20@O-PHE_32@N-H HIE_21@ND1-PHE_32@N-H
       1                   0                   0                     0
       2                   1                   0                     0
       3                   0                   0                     0
       4                   0                   0                     0
       5                   0                   0                     0

如果我从第一行的第一个值开始读取字段名，这些名称中间缺少一个'-'字符:

f1 = np.genfromtxt(fileName1, dtype=None, names=True)
labels = f1.dtype.names[1:]
print labels
> ('HIE_21OPHE_32NH', 'THR_20OPHE_32NH', 'HIE_21ND1PHE_32NH')

代替HIE_21O-PHE_32NH, THR_20O-PHE_32NH, HIE_21ND1-PHE_32NH

为什么?如何检索连字符?

Answer 1

使用参数deletechars='':

In [15]: f1 = np.genfromtxt('hyphens.txt', dtype=None, names=True, deletechars='')
In [16]: f1
Out[16]: 
array([(1, 0, 0, 0), (2, 1, 0, 0), (3, 0, 0, 0), (4, 0, 0, 0), (5, 0, 0, 0)], 
      dtype=[('Frame', '<i8'), ('HIE_21@O-PHE_32@N-H', '<i8'), ('THR_20@O-PHE_32@N-H', '<i8'), ('HIE_21@ND1-PHE_32@N-H', '<i8')])
In [17]: f1.dtype.names
Out[17]: 
('Frame',
 'HIE_21@O-PHE_32@N-H',
 'THR_20@O-PHE_32@N-H',
 'HIE_21@ND1-PHE_32@N-H')