How to scale/normalize values in a matrix to be between -1 and 1
377 views (last 30 days)
I found the script that scale/normalize values in a matrix to be between 0 and 1
I = [ 1 2 3; 4 5 6]; % Some n x m matrix I that contains unscaled values.
scaledI = (I-min(I(:))) ./ (max(I(:)-min(I(:))));
min(scaledI(:)) % the min is 0
max(scaledI(:)) % the max 1
Was wondering if anyone could help me normalize values in matrix between -1 and +1 Thanks
More Answers (2)
Steven Lord on 1 Aug 2019
If you're using release R2018a or later, use the normalize function. Specify 'range' as the method and the range to which you want the data normalized (in this case [-1, 1]) as the methodtype.
x = 5*rand(1, 10)
n = normalize(x, 'range', [-1 1])
[minValue, maxValue] = bounds(n) % Should return -1 and 1