From 8875b420a873a360a9484778b487394add318a5e Mon Sep 17 00:00:00 2001
From: wukong <wukong@longaeva>
Date: Wed, 13 Jun 2018 21:41:39 -0700
Subject: added shebang, replaced if-elses with shortcut notation, ported
 online mean and variance calc to mean.awk

---
 sum1.awk | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

(limited to 'sum1.awk')

diff --git a/sum1.awk b/sum1.awk
index 02b7d6a..2f5a041 100644
--- a/sum1.awk
+++ b/sum1.awk
@@ -1,3 +1,5 @@
+#!/usr/bin/awk -f
+
 ### sum1.awk, print column sums
 # input: rows of numbers
 # output: sum of each column
@@ -6,16 +8,13 @@
 {
     for (i=1; i<=NF; i++)
         sum[i] += $i
-    if (NF > maxfld)
-        maxfld = NF
+    if (NF > nf_max)
+        nf_max = NF
 }
 
 END {
-    for (i=1; i<=maxfld; i++) {
+    for (i=1; i<=nf_max; i++) {
         printf("%g", sum[i])
-        if (i < maxfld)
-            printf("  ")
-        else
-            printf("\n")
+        (i < nf_max) ? printf("  ") : printf("\n")
     }
 }
-- 
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