Fixed-lag Sparse Viterbi

function d = flstMakeData(mdl, memory)

% makeFLSTData just returns a struct that contains all the necessary data 

% for a Fixed Lag Sparse Transition Viterbi decoder.

init = mdl.init;

transFrom = mdl.transFrom;

transTo = mdl.transTo;

transProb = mdl.transProb;

d = struct();

d.init = init(:);

d.from = transFrom;

d.to = transTo;

d.prob = transProb;

d.memory = memory;

d.nState = length(init);

d.nTrans = length(transFrom);

d.delta = ones(d.nState, 1) / d.nState;

d.oldDelta = ones(d.nState, 1) / d.nState;

d.psi = zeros(d.nState, memory);

d.scale = ones(1, memory);

d.updateCount = 0;

d.path = [];