Math error

[Paweł Bednarz]

There is something wrong when executing bnf (bnf -e training_set.txt -c test.cpd) on data as in the attachment. When the last value for dayl is changed (e.g. for 16.2) everything executes properly. Trace log:

  File "../bnf", line 66, in <module>
    fpr=options.fpr,)
  File "/home/pawel/Projects/bnfinder_help/trunk/BNfinder/data.py", line 677, in learn
    v_signs=self.select_1(v,par).signs()
  File "/home/pawel/Projects/bnfinder_help/trunk/BNfinder/data.py", line 160, in signs
    sign = stats.pearsonr(self.data[i],self.data[-1])[0]
  File "/home/pawel/Projects/bnfinder_help/trunk/BNfinder/stats.py", line 247, in __call__
    return apply(self._dispatch[type(arg1)], (arg1,) + args, kw)
  File "/home/pawel/Projects/bnfinder_help/trunk/BNfinder/stats.py", line 821, in lpearsonr
    t = r*math.sqrt(df/((1.0-r+TINY)*(1.0+r+TINY)))
ValueError: math domain error