How can I add a set of data to an array in a for loop n number of times without rewriting the previous data in the array

for i=1:1:100

while A(i)~=1

%do some data processing of A and obtain B

idx=find(B==0)

S=idx

A(idx)= 1;

end for

end while

In this program how do I store all the values of idx in S for every itereation of the loop without over writing the previous stored values of idx in S. I need all such values of idx for future use.

Answer 1

[Ameer Hamza]

Save in a cell array.

S = cell(1,100);
for i=1:1:100 
    while A(i)~=1
        %do some data processing of A and obtain B
        idx=find(B==0)
        S{i}=idx % cell array indexing
        A(idx)= 1;
    end % while
end % for

Access the element like this

S{1} % idx for i=1
S{2} % idx for i=2

Read more about cell arrays: https://www.mathworks.com/help/matlab/cell-arrays.html

[Praanesh Sambath]

Thanks it worked.... but I need just the obtained 10 values in one single array for future use... Can you please tell me how do I do that?

{

[1,1] = [](0x0)

[2,1] = [](0x0)

[3,1] = [](0x0).....

[50,1] =

50

51

52

58

59

60......

[53,1] =

53

54

55

56

57........

[Ameer Hamza]

I don't understand your question. Can you give a small example.

[Praanesh Sambath]

In the cell array, I have values ranging from 50 to 60 in two different cells. I need those values in a normal array. How do I do that?

[Ameer Hamza]

Normal array in MATLAB cannot have data of different lengths. Each row and column must have an equal number of elements.

[Praanesh Sambath]

cell2mat function worked thanks