From 41de8813cbaa57fa800330e79318b955ea6efa20 Mon Sep 17 00:00:00 2001 From: Benjamin Franzke Date: Thu, 10 May 2012 14:58:19 +0200 Subject: normalize: Optionally work on rows of matrices --- normalize.m | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'normalize.m') diff --git a/normalize.m b/normalize.m index daff739..620db1c 100644 --- a/normalize.m +++ b/normalize.m @@ -1,3 +1,12 @@ function n = normalize(data) - n = (data - min(data)) ./ (max(data) - min(data)); + assert(size(data, 1) > 1) + + _min = repmat(min(data), size(data, 1), 1); + _max = repmat(max(data), size(data, 1), 1); + equals = (_min == _max); + if any(any(equals)) + _min = _min .* ~equals; + _max = _max .* ~equals + ones(size(_max)) .* equals; + end + n = (data - _min) ./ (_max - _min); end -- cgit