Distributions & forward contexts
PDF/CDF/PMF, Laplace transform, normalization, and the forward-stepping probability-distribution contexts.
Functions
ptd_normalize_graph
double * ptd_normalize_graph(struct ptd_graph *graph)ptd_dph_normalize_graph
double * ptd_dph_normalize_graph(struct ptd_graph *graph)ptd_graph_as_phase_type_distribution
struct ptd_phase_type_distribution * ptd_graph_as_phase_type_distribution(struct ptd_graph *graph)ptd_phase_type_distribution_destroy
void ptd_phase_type_distribution_destroy(struct ptd_phase_type_distribution *ptd)ptd_probability_distribution_context_create
struct ptd_probability_distribution_context * ptd_probability_distribution_context_create(struct ptd_graph *graph, int64_t granularity)ptd_probability_distribution_context_destroy
void ptd_probability_distribution_context_destroy(struct ptd_probability_distribution_context *context)ptd_probability_distribution_step
int ptd_probability_distribution_step(struct ptd_probability_distribution_context *context)ptd_dph_probability_distribution_context_create
struct ptd_dph_probability_distribution_context * ptd_dph_probability_distribution_context_create(struct ptd_graph *graph)ptd_dph_probability_distribution_context_destroy
void ptd_dph_probability_distribution_context_destroy(struct ptd_dph_probability_distribution_context *context)ptd_dph_probability_distribution_step
int ptd_dph_probability_distribution_step(struct ptd_dph_probability_distribution_context *context)ptd_graph_laplace_transform
struct ptd_clone_res ptd_graph_laplace_transform(struct ptd_graph *graph, struct ptd_avl_tree *avl_tree, double theta)Creates a Laplace-transformed graph.
Returns a new graph where each transient state has an additional edge to the absorbing state with weight theta (or theta added to existing absorbing edge weight). This transformation allows computing the Laplace transform L(theta) = E[exp(-theta * T)] via expectation() on the result.
Parameters:
graph— The phase-type graphavl_tree— The AVL tree for vertex lookuptheta— The Laplace transform parameter
Returns: A clone result containing the transformed graph and its AVL tree