From 845ab7579685b6702c92c1088ec11e71bde51f3c Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Fri, 05 Aug 2016 22:27:07 +0000
Subject: [PATCH] some more stuff
---
src/utils.c | 20 ++++++++++++++++++++
1 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/src/utils.c b/src/utils.c
index 1541e05..7386305 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -424,6 +424,13 @@
return variance;
}
+int constrain_int(int a, int min, int max)
+{
+ if (a < min) return min;
+ if (a > max) return max;
+ return a;
+}
+
float constrain(float min, float max, float a)
{
if (a < min) return min;
@@ -431,6 +438,14 @@
return a;
}
+float dist_array(float *a, float *b, int n, int sub)
+{
+ int i;
+ float sum = 0;
+ for(i = 0; i < n; i += sub) sum += pow(a[i]-b[i], 2);
+ return sqrt(sum);
+}
+
float mse_array(float *a, int n)
{
int i;
@@ -506,6 +521,11 @@
int rand_int(int min, int max)
{
+ if (max < min){
+ int s = min;
+ min = max;
+ max = s;
+ }
int r = (rand()%(max - min + 1)) + min;
return r;
}
--
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