expression vector subscript out of range

[gallupliu]

` 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
void HMM::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

[rcurtin]

Hi, I don't understand what the problem here is. Can you provide more information on what you were trying to do, what the problem was, what the output was, and so forth? I can't help out unless I know what the issue is.

Thanks,
Ryan

[rcurtin]

Closing for inactivity. Feel free to reopen/comment if needed.