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Diffstat (limited to 'normalize.m')
-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 |