在Matlab中对可变范围[x，y]进行归一化 [英] Normalization in variable range [ x , y ] in Matlab

问题描述

我想创建基本的matlab程序，以对给定范围内的给定整数数组进行规范化.

I wanna create basic matlab program that normalizes given array of integer in the given range.

• 输入是数组[a1，a2，a3，a4，a5，a6，a7 ...]和范围[x，y]
• 输出是标准化数组.

但是在任何地方，我看到的归一化范围为[0,1]或[-1,1].找不到可变范围归一化. 如果您编写了matlab代码或变量范围公式，请多谢.

But in everywhere, i see the normalization in the range of [0,1] or [-1,1]. Can't find variable range normalization. I will be grateful if you write the matlab code or the formula for variable range.

感谢您的想法.

推荐答案

如果要归一化为[x, y]，请先通过以下方式归一化为[0, 1]:

If you want to normalize to [x, y], first normalize to [0, 1] via:

 range = max(a) - min(a);
 a = (a - min(a)) / range;

然后通过以下方式缩放为[x,y]:

Then scale to [x,y] via:

 range2 = y - x;
 a = (a * range2) + x;

将它们放在一起:

 function normalized = normalize_var(array, x, y)

     % Normalize to [0, 1]:
     m = min(array);
     range = max(array) - m;
     array = (array - m) / range;

     % Then scale to [x,y]:
     range2 = y - x;
     normalized = (array*range2) + x;

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