How can I save data from for loop?
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Hello.
I have 3 arrays of scalar number. I want to have some simple calculation on all numbers of these 3 arrays one by one (Permutation of all arrays numbers ), then multiplying every result (y) with rand(4,20) and finally saving every result as a excel data. I wrote the below codes but I have some problem: "I see in the output only the last multipication result of y" and therefore just last w.
clc
clear all
i=0;
j=1;
n=1;
A = [10 20 30 40 50 10];
B = [1 1.2 1.4 1.6 1.8 1];
C = [5 25 45 65 85 5];
z= rand(4,20);
for a = 1:125
i=i+1;
if i==6
j=j+1;
i=1;
end
if j==6
n=n+1;
j=1;
end
if(n==6)
n=1;
break ;
end
A_2 = A(i);
B_2 = B(j);
C_2 = C(n);
y = A_2 * B_2 * C_2 - A_2 * C_2;
w = y * z;
end
2 Comments
Dyuman Joshi
on 13 Apr 2024
"I see in the output only the last multipication result of y" and therefore just last w."
Answers (1)
Vaibhav
on 25 Jul 2024
Hi Majid
Code is overwriting the variable w in each iteration of the loop, so only the result from the last iteration is saved. To store all the results, you can save each w in a cell array or a 3D matrix. Below is a modified version of your code that saves each result in a cell array.
clc;
clear all;
i = 0;
j = 1;
n = 1;
A = [10 20 30 40 50 10];
B = [1 1.2 1.4 1.6 1.8 1];
C = [5 25 45 65 85 5];
z = rand(4,20);
% Initialize cell array to store results
results = cell(125, 1);
for a = 1:125
i = i + 1;
if i == 6
j = j + 1;
i = 1;
end
if j == 6
n = n + 1;
j = 1;
end
if n == 6
n = 1;
break;
end
A_2 = A(i);
B_2 = B(j);
C_2 = C(n);
y = A_2 * B_2 * C_2 - A_2 * C_2;
w = y * z;
% Store the result in the cell array
results{a} = w;
end
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