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| author | Benjamin Franzke <benjaminfranzke@googlemail.com> | 2012-05-11 10:07:48 +0200 |
|---|---|---|
| committer | Benjamin Franzke <benjaminfranzke@googlemail.com> | 2012-05-11 10:16:45 +0200 |
| commit | 241d4a8570d5f7b766c76ca20e4d2454ba4ee4c8 (patch) | |
| tree | 0223dd483bf2732dad253f6480d1bd29a045e9fc | |
| parent | 07ab1ba8ad47d804668ac90e50f95fb41a437c49 (diff) | |
| download | dmc-241d4a8570d5f7b766c76ca20e4d2454ba4ee4c8.tar.gz dmc-241d4a8570d5f7b766c76ca20e4d2454ba4ee4c8.tar.bz2 dmc-241d4a8570d5f7b766c76ca20e4d2454ba4ee4c8.zip | |
normalize: Normalize max=min to 1
| -rw-r--r-- | normalize.m | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/normalize.m b/normalize.m index 44f2e7b..5df13df 100644 --- a/normalize.m +++ b/normalize.m @@ -1,13 +1,15 @@ function n = normalize(data) if (size(data, 1) == 1) data = data'; + end _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; + _min(equals) = 0; + % Prevent division by zero, and devide by 1 + _max(_max == 0) = 1; end n = (data - _min) ./ (_max - _min); end |