Am I misreading the docs or missing something? Consider the following
adapted from here:
http://docs.scipy.org/doc/numpy/user/basics.io.genfromtxt.html
from StringIO import StringIO
import numpy as np
data = "1, 2, 3\n4, ,5"
np.genfromtxt(StringIO(data), delimiter=",", names="a,b,c",
missing_values=" ", filling_values=0)
array([(1.0, 2.0, 3.0), (4.0, nan, 5.0)],
dtype=[('a', '<f8'), ('b', '<f8'), ('c', '<f8')])
np.genfromtxt(StringIO(data), delimiter=",", names="a,b,c",
missing_values={'b':" "}, filling_values={'b' : 0})
array([(1.0, 2.0, 3.0), (4.0, 0.0, 5.0)],
dtype=[('a', '<f8'), ('b', '<f8'), ('c', '<f8')])
Unless I use the dict for missing_values, it doesn't fill them in.
Without named columns
np.genfromtxt(StringIO(data), delimiter=",", missing_values=" ",
filling_values=0)
array([[ 1., 2., 3.],
[ 4., nan, 5.]])
np.genfromtxt(StringIO(data), delimiter=",", missing_values={1 :" "},
filling_values={1 :0})
array([[ 1., 2., 3.],
[ 4., 0., 5.]])
Skipper
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