added covariance matrix calculation

1 files changed, 2 insertions, 1 deletions

diff --git a/mean.awk b/mean.awk
index 54b2e14..6f16d8d 100644
--- a/mean.awk
+++ b/mean.awk
@@ -4,7 +4,7 @@
 # calculate mean average

 

 BEGIN {

-    OFS = "%.18g"

+    OFMT = "%.18g"

     sign = "[+-±]?"

     decimal = "[0-9]+[.]?[0-9]*"

     fraction = "[.][0-9]*"

@@ -33,3 +33,4 @@ END {
     print "mean", "std_dev", "std_err", "count"

     print mean, sqrt(var), sqrt(var/count), count

 }

+