Read data from two data files and save them organized into multiples files

I want to write a code that reads X coordinates from x.dat and Y coordinates from y.dat, then save X Y coordinates for each particle in different file with 3 columns: Time, X, Y. (if i have for example 10 particles i will get 10 files)

In the picture the form of the data. Each columns is for each particle, and lines are for the times iterations.

Answer 1

[Aristo Pacino]

x=load('x.dat');
y=load('y.dat');

nsize = size(x);
n     = nsize(2);  %%%% selecting only column of matrix

I am assuming x.dat and y.dat has same coloumns. Also try inserting the time in the ans matrix

for i=1:n

    ans  = [time(i),x(:,i),y(:,i)];
    
    filename = strcat('test',num2str(i),'.dat')
    save(filename,'ans','-ascii')
end

[Tesla]

Thank you,

For the time(i) I tried to replace with with a variable k=i*0.5 to have something like that:

ans = [k,x(:,i),y(:,i)];

But I got this error:

Error using horzcat

Dimensions of matrices being concatenated are not consistent.

[Tesla]

I solve this issue by adding a new column to the ans matrix

ans = [time ans];

[Aristo Pacino]

Great!