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 |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/src/utils.c b/src/utils.c
index a4071e2..8261682 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -11,6 +11,7 @@
 {
     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]);
         }
@@ -233,6 +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;
@@ -253,6 +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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