/usr/include/igraph/igraph_nongraph.h is in libigraph0-dev 0.7.1-2.1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 | /* -*- mode: C -*- */
/*
IGraph library.
Copyright (C) 2009-2012 Gabor Csardi <csardi.gabor@gmail.com>
334 Harvard street, Cambridge, MA 02139 USA
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#ifndef IGRAPH_NONGRAPH_H
#define IGRAPH_NONGRAPH_H
#undef __BEGIN_DECLS
#undef __END_DECLS
#ifdef __cplusplus
# define __BEGIN_DECLS extern "C" {
# define __END_DECLS }
#else
# define __BEGIN_DECLS /* empty */
# define __END_DECLS /* empty */
#endif
#include "igraph_constants.h"
#include "igraph_matrix.h"
#include "igraph_types.h"
#include "igraph_vector.h"
__BEGIN_DECLS
/* -------------------------------------------------- */
/* Other, not graph related */
/* -------------------------------------------------- */
/**
* \struct igraph_plfit_result_t
* \brief Result of fitting a power-law distribution to a vector
*
* This data structure contains the result of \ref igraph_power_law_fit(),
* which tries to fit a power-law distribution to a vector of numbers. The
* structure contains the following members:
*
* \member continuous Whether the fitted power-law distribution was continuous
* or discrete.
* \member alpha The exponent of the fitted power-law distribution.
* \member xmin The minimum value from which the power-law distribution was
* fitted. In other words, only the values larger than \c xmin
* were used from the input vector.
* \member L The log-likelihood of the fitted parameters; in other words,
* the probability of observing the input vector given the
* parameters.
* \member D The test statistic of a Kolmogorov-Smirnov test that compares
* the fitted distribution with the input vector. Smaller scores
* denote better fit.
* \member p The p-value of the Kolmogorov-Smirnov test. Small p-values
* (less than 0.05) indicate that the test rejected the hypothesis
* that the original data could have been drawn from the fitted
* power-law distribution.
*/
typedef struct igraph_plfit_result_t {
igraph_bool_t continuous;
double alpha;
double xmin;
double L;
double D;
double p;
} igraph_plfit_result_t;
int igraph_running_mean(const igraph_vector_t *data, igraph_vector_t *res,
igraph_integer_t binwidth);
int igraph_fisher_yates_shuffle(igraph_vector_t *seq);
int igraph_random_sample(igraph_vector_t *res, igraph_real_t l, igraph_real_t h,
igraph_integer_t length);
int igraph_convex_hull(const igraph_matrix_t *data, igraph_vector_t *resverts,
igraph_matrix_t *rescoords);
int igraph_zeroin(igraph_real_t *ax, igraph_real_t *bx,
igraph_real_t (*f)(igraph_real_t x, void *info),
void *info, igraph_real_t *Tol, int *Maxit, igraph_real_t *res);
int igraph_bfgs(igraph_vector_t *b, igraph_real_t *Fmin,
igraph_scalar_function_t fminfn, igraph_vector_function_t fmingr,
int maxit, int trace,
igraph_real_t abstol, igraph_real_t reltol, int nREPORT, void *ex,
igraph_integer_t *fncount, igraph_integer_t *grcount);
int igraph_power_law_fit(const igraph_vector_t* vector, igraph_plfit_result_t* result,
igraph_real_t xmin, igraph_bool_t force_continuous);
__END_DECLS
#endif
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