feat: onehot feature implementation in process

To make onehot available I had to refactor how the data is stored, the
current implementation supports json files.

1 files changed, 26 insertions, 1 deletions

diff --git a/src/parse.h b/src/parse.h
index 07f740b..3f49c15 100644
--- a/src/parse.h
+++ b/src/parse.h
@@ -6,13 +6,38 @@
 
 #include "util.h"
 
+enum ArrayType {
+    ARRAY_NUMERICAL,
+    ARRAY_ORDINAL,
+    ARRAY_ONEHOT
+};
+
+union ArrayValue {
+    double numeric;
+    char *categorical;
+};
+
 typedef struct Array {
-    double *data;
+    enum ArrayType *type;
+    union ArrayValue *data;
     size_t shape[2];
 } Array;
 
 
+void array_free(Array *x);
 void file_read(char *filepath, Array *input, Array *out, struct Configs configs, bool read_output);
 void file_write(Array input, Array out, struct Configs ml_configs);
 char * file_format_infer(char *filename);
+double * data_preprocess(
+        size_t out_shape[2],
+        Array data,
+        struct Configs configs,
+        bool is_input,
+        bool only_allocate);
+
+void data_postprocess(
+        Array *out,
+        double *data, size_t data_shape[2],
+        struct Configs cfgs,
+        bool is_input);
 #endif