Error in Python NLTK

[subhabangalore at gmail.com]

On Monday, April 8, 2013 1:50:38 AM UTC+5:30, subhaba... at gmail.com wrote:
> On Sunday, April 7, 2013 2:14:41 AM UTC+5:30, Dave Angel wrote:
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> > On 04/06/2013 03:56 PM, subhabangalore at gmail.com wrote:
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> > > Dear Group,
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> > > I was using a package named NLTK in Python.
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> > > I was trying to write a code given in section 3.8 of
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> > > http://docs.huihoo.com/nltk/0.9.5/guides/tag.html.
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> > > Here, in the >>> test = ['up', 'down', 'up'] if I put more than 3 values and trying to write the reciprocal codes, like,
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> > >              sequence = [(t, None) for t in test] and print '%.3f' % (model.probability(sequence))
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> > This 'and' operator is going to try to interpret the previous list as a 
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> > boolean.  Could that be your problem?  Why aren't you putting these two 
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> > statements on separate lines?  And what version of Python are you using? 
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> >   If 2.x, you should get a syntax error because print is a statement. 
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> > If 3.x, you should get a different error because you don't put parens 
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> > > I am getting an error as,
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> > > Traceback (most recent call last): File "", line 1, in model.probability(sequence) File "C:\Python27\lib\site-packages\nltk\tag\hmm.py", line 228, in probability return 2**(self.log_probability(self._transform.transform(sequence))) File "C:\Python27\lib\site-packages\nltk\tag\hmm.py", line 259, in log_probability alpha = self._forward_probability(sequence) File "C:\Python27\lib\site-packages\nltk\tag\hmm.py", line 694, in _forward_probability alpha[0, i] = self._priors.logprob(state) + \ File "C:\Python27\lib\site-packages\nltk\probability.py", line 689, in logprob elif self._prob_dict[sample] == 0: return _NINF ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()
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> > > If any learned member may kindly assist me how may I solve the issue.
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> > Your error display has been trashed, thanks to googlegroups.
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> >      http://wiki.python.org/moin/GoogleGroupsPython
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> > Try posting with a text email message, since this is a text forum.
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> > Your code is also sparse.  Why do you point us to fragments on the net, 
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> > when you could show us the exact code you were running when it failed? 
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> > I'm guessing you're running it from the interpreter, which can be very 
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> > confusing once you have to ask for help.  Please put a sample of code 
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> > into a file, run it, and paste into your text email both the contents of 
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> > that file and the full traceback.  thanks.
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> > The email address to post on this forum is  python-list at python.org
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> > -- 
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> > DaveA
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> Dear Sir, 
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> I generally solved this problem from some other angle but I would like to fix this particular issue also so I am posting soon to you. 
> 
> Regards,
> 
> Subhabrata.

Dear Sir,
I was trying to give wrong input. I was making an input error.

Regards,
Subhabrata.