pebl.data.ParsingError: Cannot convert value

[ihsansatriawan]

I have tried your work and follow from this https://pythonhosted.org/pebl/tutorial.html, when i tried

>>> from pebl import data
Couldn't import dot_parser, loading of dot files will not be possible.
>>> from pebl import data
>>> from pebl.learner import greedy
>>> dataset = data.fromfile("data.txt")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/pebl-1.0.2-py2.7-linux-x86_64.egg/pebl/data.py", line 433, in fromfile
    return fromstring(f.read())
  File "/usr/local/lib/python2.7/dist-packages/pebl-1.0.2-py2.7-linux-x86_64.egg/pebl/data.py", line 553, in fromstring
    d = N.array([[dataitem(c,v) for c,v in zip(row,variables)] for row in d]) 
  File "/usr/local/lib/python2.7/dist-packages/pebl-1.0.2-py2.7-linux-x86_64.egg/pebl/data.py", line 491, in dataitem
    raise ParsingError(msg)
pebl.data.ParsingError: Cannot convert value 1.17  1.61  2.17  1.58  1.98  0.19  -0.47 -0.12 -1.09 0.57  0.83  0.5 to a float.

how can i use your work ? thx