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changeset 1724:a45e88743238

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[project @ 1996-01-09 06:19:59 by jwe]
author jwe
date Tue, 09 Jan 1996 06:19:59 +0000
parents ab9a2880b6c5
children 59ee9a58f80e
files scripts/statistics/std.m
diffstat 1 files changed, 1 insertions(+), 3 deletions(-) [+]
line wrap: on
line diff
--- a/scripts/statistics/std.m
+++ b/scripts/statistics/std.m
@@ -38,9 +38,7 @@
     n = length (a);
     retval = sqrt (sumsq (a - mean (a)) / (n - 1));
   elseif (nr > 1 && nc > 0)
-    tmp = mean (a);
-    tmp = tmp (ones (nr, 1), :);
-    retval = sqrt (sumsq (a - tmp) / (nr - 1));
+    retval = sqrt (sumsq (a - ones (nr, 1) * mean (a)) / (nr - 1));
   else
     error ("std: invalid matrix argument");
   endif