From bfffadc75502cadb5d05909435a2167db5204325 Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Wed, 04 Feb 2015 20:41:20 +0000
Subject: [PATCH] Stable place to commit
---
src/utils.c | 35 +++++++++++++++++++++++++++++++++--
1 files changed, 33 insertions(+), 2 deletions(-)
diff --git a/src/utils.c b/src/utils.c
index 28be2ec..8261682 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -7,6 +7,20 @@
#include "utils.h"
+void pm(int M, int N, float *A)
+{
+ int i,j;
+ for(i =0 ; i < M; ++i){
+ printf("%d ", i+1);
+ for(j = 0; j < N; ++j){
+ printf("%10.6f, ", A[i*N+j]);
+ }
+ printf("\n");
+ }
+ printf("\n");
+}
+
+
char *find_replace(char *str, char *orig, char *rep)
{
static char buffer[4096];
@@ -44,10 +58,9 @@
}
}
-void error(char *s)
+void error(const char *s)
{
perror(s);
- //fprintf(stderr, "Error: %s\n", s);
exit(0);
}
@@ -221,6 +234,14 @@
return a;
}
+float mse_array(float *a, int n)
+{
+ int i;
+ float sum = 0;
+ for(i = 0; i < n; ++i) sum += a[i]*a[i];
+ return sqrt(sum/n);
+}
+
void normalize_array(float *a, int n)
{
int i;
@@ -241,6 +262,16 @@
}
}
+float mag_array(float *a, int n)
+{
+ int i;
+ float sum = 0;
+ for(i = 0; i < n; ++i){
+ sum += a[i]*a[i];
+ }
+ return sqrt(sum);
+}
+
void scale_array(float *a, int n, float s)
{
int i;
--
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