Get the column names of a python numpy ndarray
Let's say I have a data file called data.txt
that looks like:
TIME FX FY FZ
0 10 5 6
1 2 4 7
2 5 2 6
...
In Python run:
import numpy as np
myData = np.genfromtxt("data.txt", names=True)
>>> print myData["TIME"]
[0, 1, 2]
The names at the top of my data file will vary, so what I would like to do is find out what the names of my arrays in the data file are. I would like something like:
>>> print myData.names
[TIME, F0, F1, F2]
I thought about just to read in the data file and get the first line and parse it as a separate operation, but that doesn't seem very efficient or elegant.
Try:
myData.dtype.names
This will return a tuple of the field names.
In [10]: myData.dtype.names
Out[10]: ('TIME', 'FX', 'FY', 'FZ')