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/* -*- 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_SPARSEMAT_H
#define IGRAPH_SPARSEMAT_H
#include "igraph_types.h"
#include "igraph_vector.h"
#include "igraph_datatype.h"
#include "igraph_arpack.h"
#include <stdio.h>
struct cs_di_sparse;
struct cs_di_symbolic;
struct cs_di_numeric;
typedef struct {
struct cs_di_sparse *cs;
} igraph_sparsemat_t;
typedef struct {
struct cs_di_symbolic *symbolic;
} igraph_sparsemat_symbolic_t;
typedef struct {
struct cs_di_numeric *numeric;
} igraph_sparsemat_numeric_t;
typedef enum { IGRAPH_SPARSEMAT_TRIPLET,
IGRAPH_SPARSEMAT_CC } igraph_sparsemat_type_t;
typedef struct {
igraph_sparsemat_t *mat;
int pos;
int col;
} igraph_sparsemat_iterator_t;
int igraph_sparsemat_init(igraph_sparsemat_t *A, int rows, int cols, int nzmax);
int igraph_sparsemat_copy(igraph_sparsemat_t *to,
const igraph_sparsemat_t *from);
void igraph_sparsemat_destroy(igraph_sparsemat_t *A);
int igraph_sparsemat_realloc(igraph_sparsemat_t *A, int nzmax);
long int igraph_sparsemat_nrow(const igraph_sparsemat_t *A);
long int igraph_sparsemat_ncol(const igraph_sparsemat_t *B);
igraph_sparsemat_type_t igraph_sparsemat_type(const igraph_sparsemat_t *A);
igraph_bool_t igraph_sparsemat_is_triplet(const igraph_sparsemat_t *A);
igraph_bool_t igraph_sparsemat_is_cc(const igraph_sparsemat_t *A);
int igraph_sparsemat_permute(const igraph_sparsemat_t *A,
const igraph_vector_int_t *p,
const igraph_vector_int_t *q,
igraph_sparsemat_t *res);
int igraph_sparsemat_index(const igraph_sparsemat_t *A,
const igraph_vector_int_t *p,
const igraph_vector_int_t *q,
igraph_sparsemat_t *res,
igraph_real_t *constres);
int igraph_sparsemat_entry(igraph_sparsemat_t *A, int row, int col,
igraph_real_t elem);
int igraph_sparsemat_compress(const igraph_sparsemat_t *A,
igraph_sparsemat_t *res);
int igraph_sparsemat_transpose(const igraph_sparsemat_t *A,
igraph_sparsemat_t *res, int values);
igraph_bool_t igraph_sparsemat_is_symmetric(const igraph_sparsemat_t *A);
int igraph_sparsemat_dupl(igraph_sparsemat_t *A);
int igraph_sparsemat_fkeep(igraph_sparsemat_t *A,
int (*fkeep)(int, int, igraph_real_t, void*),
void *other);
int igraph_sparsemat_dropzeros(igraph_sparsemat_t *A);
int igraph_sparsemat_droptol(igraph_sparsemat_t *A, igraph_real_t tol);
int igraph_sparsemat_multiply(const igraph_sparsemat_t *A,
const igraph_sparsemat_t *B,
igraph_sparsemat_t *res);
int igraph_sparsemat_add(const igraph_sparsemat_t *A,
const igraph_sparsemat_t *B,
igraph_real_t alpha,
igraph_real_t beta,
igraph_sparsemat_t *res);
int igraph_sparsemat_gaxpy(const igraph_sparsemat_t *A,
const igraph_vector_t *x,
igraph_vector_t *res);
int igraph_sparsemat_lsolve(const igraph_sparsemat_t *A,
const igraph_vector_t *b,
igraph_vector_t *res);
int igraph_sparsemat_ltsolve(const igraph_sparsemat_t *A,
const igraph_vector_t *b,
igraph_vector_t *res);
int igraph_sparsemat_usolve(const igraph_sparsemat_t *A,
const igraph_vector_t *b,
igraph_vector_t *res);
int igraph_sparsemat_utsolve(const igraph_sparsemat_t *A,
const igraph_vector_t *b,
igraph_vector_t *res);
int igraph_sparsemat_cholsol(const igraph_sparsemat_t *A,
const igraph_vector_t *b,
igraph_vector_t *res,
int order);
int igraph_sparsemat_lusol(const igraph_sparsemat_t *A,
const igraph_vector_t *b,
igraph_vector_t *res,
int order,
igraph_real_t tol);
int igraph_sparsemat_print(const igraph_sparsemat_t *A,
FILE *outstream);
int igraph_sparsemat_eye(igraph_sparsemat_t *A, int n, int nzmax,
igraph_real_t value,
igraph_bool_t compress);
int igraph_sparsemat_diag(igraph_sparsemat_t *A, int nzmax,
const igraph_vector_t *values,
igraph_bool_t compress);
int igraph_sparsemat(igraph_t *graph, const igraph_sparsemat_t *A,
igraph_bool_t directed);
int igraph_weighted_sparsemat(igraph_t *graph, const igraph_sparsemat_t *A,
igraph_bool_t directed, const char *attr,
igraph_bool_t loops);
int igraph_get_sparsemat(const igraph_t *graph, igraph_sparsemat_t *res);
int igraph_matrix_as_sparsemat(igraph_sparsemat_t *res,
const igraph_matrix_t *mat,
igraph_real_t tol);
int igraph_sparsemat_as_matrix(igraph_matrix_t *res,
const igraph_sparsemat_t *spmat);
typedef enum { IGRAPH_SPARSEMAT_SOLVE_LU,
IGRAPH_SPARSEMAT_SOLVE_QR } igraph_sparsemat_solve_t;
int igraph_sparsemat_arpack_rssolve(const igraph_sparsemat_t *A,
igraph_arpack_options_t *options,
igraph_arpack_storage_t *storage,
igraph_vector_t *values,
igraph_matrix_t *vectors,
igraph_sparsemat_solve_t solvemethod);
int igraph_sparsemat_arpack_rnsolve(const igraph_sparsemat_t *A,
igraph_arpack_options_t *options,
igraph_arpack_storage_t *storage,
igraph_matrix_t *values,
igraph_matrix_t *vectors);
int igraph_sparsemat_lu(const igraph_sparsemat_t *A,
const igraph_sparsemat_symbolic_t *dis,
igraph_sparsemat_numeric_t *din, double tol);
int igraph_sparsemat_qr(const igraph_sparsemat_t *A,
const igraph_sparsemat_symbolic_t *dis,
igraph_sparsemat_numeric_t *din);
int igraph_sparsemat_luresol(const igraph_sparsemat_symbolic_t *dis,
const igraph_sparsemat_numeric_t *din,
const igraph_vector_t *b,
igraph_vector_t *res);
int igraph_sparsemat_qrresol(const igraph_sparsemat_symbolic_t *dis,
const igraph_sparsemat_numeric_t *din,
const igraph_vector_t *b,
igraph_vector_t *res);
int igraph_sparsemat_symbqr(long int order, const igraph_sparsemat_t *A,
igraph_sparsemat_symbolic_t *dis);
int igraph_sparsemat_symblu(long int order, const igraph_sparsemat_t *A,
igraph_sparsemat_symbolic_t *dis);
void igraph_sparsemat_symbolic_destroy(igraph_sparsemat_symbolic_t *dis);
void igraph_sparsemat_numeric_destroy(igraph_sparsemat_numeric_t *din);
igraph_real_t igraph_sparsemat_max(igraph_sparsemat_t *A);
igraph_real_t igraph_sparsemat_min(igraph_sparsemat_t *A);
int igraph_sparsemat_minmax(igraph_sparsemat_t *A,
igraph_real_t *min, igraph_real_t *max);
long int igraph_sparsemat_count_nonzero(igraph_sparsemat_t *A);
long int igraph_sparsemat_count_nonzerotol(igraph_sparsemat_t *A,
igraph_real_t tol);
int igraph_sparsemat_rowsums(const igraph_sparsemat_t *A,
igraph_vector_t *res);
int igraph_sparsemat_colsums(const igraph_sparsemat_t *A,
igraph_vector_t *res);
int igraph_sparsemat_scale(igraph_sparsemat_t *A, igraph_real_t by);
int igraph_sparsemat_add_rows(igraph_sparsemat_t *A, long int n);
int igraph_sparsemat_add_cols(igraph_sparsemat_t *A, long int n);
int igraph_sparsemat_resize(igraph_sparsemat_t *A, long int nrow,
long int ncol, int nzmax);
int igraph_sparsemat_nonzero_storage(const igraph_sparsemat_t *A);
int igraph_sparsemat_getelements(const igraph_sparsemat_t *A,
igraph_vector_int_t *i,
igraph_vector_int_t *j,
igraph_vector_t *x);
int igraph_sparsemat_getelements_sorted(const igraph_sparsemat_t *A,
igraph_vector_int_t *i,
igraph_vector_int_t *j,
igraph_vector_t *x);
int igraph_sparsemat_scale_rows(igraph_sparsemat_t *A,
const igraph_vector_t *fact);
int igraph_sparsemat_scale_cols(igraph_sparsemat_t *A,
const igraph_vector_t *fact);
int igraph_sparsemat_multiply_by_dense(const igraph_sparsemat_t *A,
const igraph_matrix_t *B,
igraph_matrix_t *res);
int igraph_sparsemat_dense_multiply(const igraph_matrix_t *A,
const igraph_sparsemat_t *B,
igraph_matrix_t *res);
int igraph_i_sparsemat_view(igraph_sparsemat_t *A, int nzmax, int m, int n,
int *p, int *i, double *x, int nz);
int igraph_sparsemat_sort(const igraph_sparsemat_t *A,
igraph_sparsemat_t *sorted);
int igraph_sparsemat_nzmax(const igraph_sparsemat_t *A);
int igraph_sparsemat_neg(igraph_sparsemat_t *A);
int igraph_sparsemat_iterator_init(igraph_sparsemat_iterator_t *it,
igraph_sparsemat_t *sparsemat);
int igraph_sparsemat_iterator_reset(igraph_sparsemat_iterator_t *it);
igraph_bool_t
igraph_sparsemat_iterator_end(const igraph_sparsemat_iterator_t *it);
int igraph_sparsemat_iterator_row(const igraph_sparsemat_iterator_t *it);
int igraph_sparsemat_iterator_col(const igraph_sparsemat_iterator_t *it);
int igraph_sparsemat_iterator_idx(const igraph_sparsemat_iterator_t *it);
igraph_real_t
igraph_sparsemat_iterator_get(const igraph_sparsemat_iterator_t *it);
int igraph_sparsemat_iterator_next(igraph_sparsemat_iterator_t *it);
#endif
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