From ac82bde55f3206a7a0d1b7a7580bea05096af32b Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Thu, 17 Apr 2014 22:07:00 +0000
Subject: [PATCH] New feature extraction method

---
 src/utils.h |   12 +++++++++++-
 1 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/src/utils.h b/src/utils.h
index 87ef428..6fe0343 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -13,6 +13,16 @@
 list *parse_csv_line(char *line);
 char *copy_string(char *s);
 int count_fields(char *line);
-double *parse_fields(char *line, int n);
+float *parse_fields(char *line, int n);
+void normalize_array(float *a, int n);
+void scale_array(float *a, int n, float s);
+void translate_array(float *a, int n, float s);
+int max_index(float *a, int n);
+float constrain(float a, float max);
+float rand_normal();
+float rand_uniform();
+float mean_array(float *a, int n);
+float variance_array(float *a, int n);
+float **one_hot_encode(float *a, int n, int k);
 #endif
 

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