[mlpack-git] [mlpack/mlpack] expression vector subscript out of range (#706)

[gallup]

`	mat observation;//obseration matrix
	Row<size_t> sequence;//label

	const size_t length = 75;
	const size_t startState = 0;

	HMM<DiscreteDistribution> hmm(2, DiscreteDistribution(4));

	hmm.Generate(length, observation, sequence, startState);`


`template<typename Distribution>
	void HMM<Distribution>::Generate(const size_t length,
		arma::mat& dataSequence,
		arma::Row<size_t>& stateSequence,
		const size_t startState) const
	{
		// Set vectors to the right size.
		stateSequence.set_size(length);
		dataSequence.set_size(dimensionality, length);

		// Set start state (default is 0).
		stateSequence[0] = startState;

		// Choose first emission state.
		double randValue = ((double)rand() / (RAND_MAX)) + 1;
	

		// We just have to find where our random value sits in the probability
		// distribution of emissions for our starting state.
		dataSequence.col(0) = emission[startState].Random();

		// Now choose the states and emissions for the rest of the sequence.
		for (size_t t = 1; t < length; t++)
		{
			// First choose the hidden state.
			randValue = ((double)rand() / (RAND_MAX)) + 1;


			// Now find where our random value sits in the probability distribution of
			// state changes.
			double probSum = 0;
			for (size_t st = 0; st < transition.n_rows; st++)
			{
				probSum += transition(st, stateSequence[t - 1]);
				if (randValue <= probSum)
				{
					stateSequence[t] = st;
					break;
				}
			}

			// Now choose the emission.
			dataSequence.col(t) = emission[stateSequence[t]].Random();
		}
	}`


I found some reasons：dataSequence.col(t) = emission[stateSequence[t]].Random(); is error 
http://stackoverflow.com/questions/9100848/vector-subscript-out-of-range-error-in-c

---
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/mlpack/mlpack/issues/706
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.cc.gatech.edu/pipermail/mlpack-git/attachments/20160627/a180c1dd/attachment-0001.html>