allow datasets to be stored in libsvm/svmlight format

4 files changed, 10 insertions, 4 deletions

diff --git a/include/gensvm_globals.h b/include/gensvm_globals.h
index 1151069..1aca458 100644
--- a/include/gensvm_globals.h
+++ b/include/gensvm_globals.h
@@ -39,15 +39,17 @@
 #include "gensvm_memory.h"
 
 // all system libraries are included here
+#include <cblas.h>
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <math.h>
 #include <stdarg.h>
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <stdbool.h>
 #include <string.h>
-#include <math.h>
 #include <time.h>
-#include <cblas.h>
-#include <limits.h>
 
 // ########################### Type definitions ########################### //
 
diff --git a/include/gensvm_io.h b/include/gensvm_io.h
index afcf4a3..c18e9a2 100644
--- a/include/gensvm_io.h
+++ b/include/gensvm_io.h
@@ -37,6 +37,7 @@
 
 // function declarations
 void gensvm_read_data(struct GenData *dataset, char *data_file);
+void gensvm_read_data_libsvm(struct GenData *dataset, char *data_file);
 
 void gensvm_read_model(struct GenModel *model, char *model_filename);
 void gensvm_write_model(struct GenModel *model, char *output_filename);
diff --git a/include/gensvm_sparse.h b/include/gensvm_sparse.h
index 570e19a..f897889 100644
--- a/include/gensvm_sparse.h
+++ b/include/gensvm_sparse.h
@@ -71,6 +71,7 @@ struct GenSparse {
 struct GenSparse *gensvm_init_sparse();
 void gensvm_free_sparse(struct GenSparse *sp);
 long gensvm_count_nnz(double *A, long rows, long cols);
+bool gensvm_nnz_comparison(long nnz, long rows, long cols);
 bool gensvm_could_sparse(double *A, long rows, long cols);
 struct GenSparse *gensvm_dense_to_sparse(double *A, long rows, long cols);
 double *gensvm_sparse_to_dense(struct GenSparse *A);
diff --git a/include/gensvm_strutil.h b/include/gensvm_strutil.h
index 4e86944..1a2dccc 100644
--- a/include/gensvm_strutil.h
+++ b/include/gensvm_strutil.h
@@ -35,6 +35,8 @@
 
 bool str_startswith(const char *str, const char *pre);
 bool str_endswith(const char *str, const char *suf);
+bool str_contains_char(const char *str, const char c);
+char **str_split(char *original, const char *delims, int *len_ret);
 
 void next_line(FILE *fid, char *filename);
 char *get_line(FILE *fid, char *filename, char *buffer);