Working with arrays in a for loop

I have 2 variables that take their values from a 'for' loop. How can I put the values of those 2 variables into an array? For example, I have the code:

for ....
  Ith1 = H - ceil(i./I);
  Ith2 = I;
end

and the variables Ith1, Ith2 take some values. I want these values to put them in an array. As a result, when I print the array I want to see all these values!.

e.g. Array with 2 columns (Ith1, Ith2)= 5 10, 2 5, 6 18

[Oleg Komarov]

You can vectorize your code, i.e. calculate your final matrix w/o loops...but you need to give us more details on how you intend to create the first and the second column (criterias)

Answer 1

[Paulo Silva]

lth1v=[];lth2v=[];
for ....

Ith1=H-ceil(i./I); Ith2=I;

lth1v=[lth1v lth1];
lth2v=[lth2v lth2];

end

lth=[lth1v lth2v];

If you want or need the code to be fast you should preallocate before the loop

   n=? %this is how many time the for will be executed,replace ? by your value
   lth1v=zeros(1,n);lth2v=zeros(1,n);

Answer 2

[the cyclist]

Something like this is probably what you are after. You might have to play around to get your syntax exactly right, but this should give you an idea.

ltArray = zeros(100,2);

for nrow = 1:100

   Ith1=H-ceil(i./I); Ith2=I;
   ltArray(nrow,:) = [Ith1,Ith2];
end

Answer 3

[athpapa -]

Thank you all for your help!