清空筛选条件
清空筛选条件

Normalization of multiple variables in MATLAB

6 次查看（过去 30 天）
Sarmed Wahab
Sarmed Wahab 2022-8-26
评论： Benjamin 2022-8-26
Ran in:
I am using 5 inputs and one target variable for my task, I need to know that either we normalize each input variable for its own max and min values or global max and min values.
To make it more clear
x1 = [1;2;3;4;6] ; x2 = [0.5;0.9;8;4;6] ; y= [32;12;21;43;52];
[x1, x2, y]
ans = 5×3
1.0000 0.5000 32.0000 2.0000 0.9000 12.0000 3.0000 8.0000 21.0000 4.0000 4.0000 43.0000 6.0000 6.0000 52.0000
norm_x1 = (x1 - min(x1)) / (max(x1) - min(x1))
norm_x1 = 5×1
0 0.2000 0.4000 0.6000 1.0000
Is this correct or should I be using min and max values out of all three columns.
  2 个评论
Rik
Rik 2022-8-26
Your question is not a Matlab question. It is a question about your application. What exactly is required in your application? What makes sense?
It is easy to implement a global normalization, but whether you should be doing that, we cannot answer.
Benjamin
Benjamin 2022-8-26
Hello,
Your message is a bite unclear, what do you wanna normalize ?
Each column of [x1,x2,y] ? Or the whole matrix [x1,x2,y] ?
And by what ? By the norm of one of the vector x1,x2 ? Or by the global max and min of [x1,x2,y] ?
Regards,

请先登录，再进行评论。

请先登录，再回答此问题。

回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Get Started with MATLAB 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by