How set scale limits of y-axis between 0-1 when values range from -9500 to 9200

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Erin Browne
Erin Browne 2019-3-13
回答： Yash 2025-7-18
I have a large data set of relflectance values
I am trying to change these values in order for the min value to be respect of 0 and max 1 i.e. -9500 = 0 and 9200 = 1
I've tried the rescale function different way but still get it scaled were all my values are between 0.508 and 0.512 rather than spread between 0 - 1
does anyone know why or have code that can help?
Thank you
Erin

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回答（1 个）

Yash
Yash 2025-7-18
Ran in:
You can use the "normalize" function to do min-max scaling of your dataset to the range [0,1].
data = [-9500, -5000, 0, 5000, 9200]; % Sample data
disp(data);
-9500 -5000 0 5000 9200
normalized_data = normalize(data, 'range'); % 'range' rescales range of data to [0, 1]
disp(normalized_data);
0.0000 0.2406 0.5080 0.7754 1.0000
Refer to the documentation of "normalize" function here: https://www.mathworks.com/help/matlab/ref/double.normalize.html

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