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authorPaul Duncan <pabs@pablotron.org>2019-02-05 00:22:15 -0500
committerPaul Duncan <pabs@pablotron.org>2019-02-05 00:22:15 -0500
commitf557d1f49a2914c6084dd18efc783395228d8ce0 (patch)
tree51111fc899f01956cbab948b87c241478576870d /km-init.c
parentb5065ea43cb13c0b553874305b53963176c70f59 (diff)
downloadkmeans-f557d1f49a2914c6084dd18efc783395228d8ce0.tar.bz2
kmeans-f557d1f49a2914c6084dd18efc783395228d8ce0.zip
mv *.[hc] src/
Diffstat (limited to 'km-init.c')
-rw-r--r--km-init.c85
1 files changed, 0 insertions, 85 deletions
diff --git a/km-init.c b/km-init.c
deleted file mode 100644
index 280ea81..0000000
--- a/km-init.c
+++ /dev/null
@@ -1,85 +0,0 @@
-#include <stdbool.h> // bool
-#include <stddef.h> // size_t
-#include <string.h> // strcmp()
-#include "util.h"
-#include "km.h"
-
-typedef bool (*km_init_fn_t)(
- km_set_t *,
- const size_t,
- const km_set_t *,
- km_rand_t *
-);
-
-bool km_init_rand(km_set_t *, const size_t, const km_set_t *, km_rand_t *);
-bool km_init_forgy(km_set_t *, const size_t, const km_set_t *, km_rand_t *);
-bool km_init_kmeans(km_set_t *, const size_t, const km_set_t *, km_rand_t *);
-
-static const struct {
- const km_init_type_t type;
- const char * const name;
- const km_init_fn_t init;
-} TYPES[] = {{
- .name = "rand",
- .type = KM_INIT_TYPE_RAND,
- .init = km_init_rand,
-}, {
- .name = "forgy",
- .type = KM_INIT_TYPE_FORGY,
- .init = km_init_forgy,
-}, {
- .name = "kmeans",
- .type = KM_INIT_TYPE_KMEANS,
- .init = km_init_kmeans,
-}};
-
-#define NUM_TYPES (sizeof(TYPES) / sizeof(TYPES[0]))
-
-km_init_type_t
-km_init_get_type(
- const char * const s
-) {
- // find init method
- for (size_t i = 0; i < NUM_TYPES; i++) {
- if (!strcmp(s, TYPES[i].name)) {
- // return type
- return TYPES[i].type;
- }
- }
-
- // return failure
- return KM_INIT_TYPE_LAST;
-}
-
-static km_init_fn_t
-get_init_func(
- const km_init_type_t type
-) {
- // find init method
- for (size_t i = 0; i < NUM_TYPES; i++) {
- if (type == TYPES[i].type) {
- // return init func
- return TYPES[i].init;
- }
- }
-
- // return failure
- return NULL;
-}
-
-bool
-km_init(
- km_set_t * const cs,
- const km_init_type_t init_type,
- const size_t num_clusters,
- const km_set_t * const set,
- km_rand_t * const rs
-) {
- km_init_fn_t init_fn = get_init_func(init_type);
- if (!init_fn) {
- die("unknown cluster init method");
- }
-
- // call init, return result
- return init_fn(cs, num_clusters, set, rs);
-}