Add graph references

2026-06-28 13:49:01 +01:00
parent 0a9807e448
commit a11edf0c53
2578 changed files with 868045 additions and 0 deletions
@@ -0,0 +1,63 @@
+/*
+   igraph library.
+   Copyright (C) 2014-2025  The igraph development team <igraph@igraph.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#ifndef IGRAPH_EPIDEMICS_H
+#define IGRAPH_EPIDEMICS_H
+
+#include "igraph_decls.h"
+#include "igraph_datatype.h"
+#include "igraph_error.h"
+#include "igraph_vector.h"
+#include "igraph_vector_ptr.h"
+
+IGRAPH_BEGIN_C_DECLS
+
+/**
+ * \struct igraph_sir_t
+ * \brief The result of one SIR model simulation.
+ *
+ * Data structure to store the results of one simulation
+ * of the SIR (susceptible-infected-recovered) model on a graph.
+ *
+ * It has the following members. They are all (real or integer)
+ * vectors, and they are of the same length.
+ *
+ * \member times A vector, the times of the events are stored here.
+ * \member no_s An integer vector, the number of susceptibles in
+ *              each time step is stored here.
+ * \member no_i An integer vector, the number of infected individuals
+ *              at each time step, is stored here.
+ * \member no_r An integer vector, the number of recovered individuals
+ *              is stored here at each time step.
+ */
+
+typedef struct igraph_sir_t {
+    igraph_vector_t times;
+    igraph_vector_int_t no_s, no_i, no_r;
+} igraph_sir_t;
+
+IGRAPH_EXPORT igraph_error_t igraph_sir_init(igraph_sir_t *sir);
+IGRAPH_EXPORT void igraph_sir_destroy(igraph_sir_t *sir);
+
+IGRAPH_EXPORT igraph_error_t igraph_sir(const igraph_t *graph, igraph_real_t beta,
+                             igraph_real_t gamma, igraph_int_t no_sim,
+                             igraph_vector_ptr_t *result);
+
+IGRAPH_END_C_DECLS
+
+#endif