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authorKatolaZ <katolaz@freaknet.org>2017-09-27 15:06:31 +0100
committerKatolaZ <katolaz@freaknet.org>2017-09-27 15:06:31 +0100
commit3aee2fd43e3059a699af2b63c6f2395e5a55e515 (patch)
tree58c95505a0906ed9cfa694f9dbd319403fd8f01d /src/deg_seq/deg_seq.c
First commit on github -- NetBunch 1.0
Diffstat (limited to 'src/deg_seq/deg_seq.c')
-rw-r--r--src/deg_seq/deg_seq.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/src/deg_seq/deg_seq.c b/src/deg_seq/deg_seq.c
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+++ b/src/deg_seq/deg_seq.c
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+/**
+ * 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 3 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
+ * <http://www.gnu.org/licenses/>.
+ *
+ * (c) Vincenzo Nicosia 2009-2017 -- <v.nicosia@qmul.ac.uk>
+ *
+ * This file is part of NetBunch, a package for complex network
+ * analysis and modelling. For more information please visit:
+ *
+ * http://www.complex-networks.net/
+ *
+ * If you use this software, please add a reference to
+ *
+ * V. Latora, V. Nicosia, G. Russo
+ * "Complex Networks: Principles, Methods and Applications"
+ * Cambridge University Press (2017)
+ * ISBN: 9781107103184
+ *
+ ***********************************************************************
+ *
+ * This program prints the degree sequence of a graph given as input
+ *
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "utils.h"
+
+
+#define DISTR_ONLY 0x01
+#define SEQ_ONLY 0x02
+#define BOTH 0x04
+
+
+void usage(char *argv[]){
+ printf("********************************************************************\n"
+ "** **\n"
+ "** -*- deg_seq -*- **\n"
+ "** **\n"
+ "** Compute the degree sequence of a graph given as input. **\n"
+ "** **\n"
+ "** The input file 'graph_in' is an edge-list: **\n"
+ "** **\n"
+ "** I_1 J_1 **\n"
+ "** I_2 J_2 **\n"
+ "** I_3 J_3 **\n"
+ "** ... ... **\n"
+ "** I_K J_K **\n"
+ "** **\n"
+ "** If 'graph_in' is equal to '-' (dash), read the file from **\n"
+ "** the standard input (STDIN). **\n"
+ "** **\n"
+ "** The program prints on output the degree of each node, one **\n"
+ "** on each line. **\n"
+ "** **\n"
+ "********************************************************************\n"
+ " This is Free Software - You can use and distribute it under \n"
+ " the terms of the GNU General Public License, version 3 or later\n\n"
+ " Please visit http://www.complex-networks.net for more information\n\n"
+ " (c) Vincenzo Nicosia 2009-2017 (v.nicosia@qmul.ac.uk)\n"
+ "********************************************************************\n\n"
+ );
+ printf("Usage: %s <graph_in>\n" , argv[0]);
+}
+
+
+void print_deg_seq(FILE *fileout, unsigned int *r, unsigned int N){
+
+ int i;
+
+ for(i=1; i<N +1; i ++)
+ fprintf(fileout, "%d\n", r[i] - r[i-1] );
+}
+
+
+int main(int argc, char *argv[]){
+
+ unsigned int *J_slap=NULL, *r_slap=NULL;
+ unsigned int K, N;
+ FILE *filein;
+
+ if (argc < 2){
+ usage(argv);
+ exit(1);
+ }
+
+ if(!strcmp(argv[1], "-")){
+ filein = stdin;
+ }
+ else{
+ filein = openfile_or_exit(argv[1], "r", 2);
+ }
+
+ read_slap(filein, &K, &N, &J_slap, &r_slap);
+
+ fclose(filein);
+
+ print_deg_seq(stdout, r_slap, N);
+ free(J_slap);
+ free(r_slap);
+}