How to normalize data ?

Hi, I have data with dimension 1x25, where

x = rand(1,25);

D = size(x,2);

I'm trying using this code, but the result is NaN. Please help me, to fix my code. Thanks

     for col = 1: D
         x(:,col)=double(x(:,col)-mean(x(:,col)));
     end
 
     for col = 1: D
         x(:,col)=double(x(:,col)/std(x(:,col)));
     end

Answer 1

[Stephan]

x = rand(1,25);
x = (x-mean(x))/std(x)

[Oman Wisni]

thanks for the answer sir, but when I use in matrik with size 220x25 dimension, I get error like this :

x = rand(220,25);
x = (x-mean(x))/std(x)

Error using -

Matrix dimensions must agree.

[Stephan]

Which Matlab release do you use? In 2018b the result is a 220x1 vector.

[Oman Wisni]

I used matlab R2015a