For loop inside for loop

hello i need to create for loop inside for loop

i have 8 numbers, and i have to make an array 1x40 sized

so the hint is i have to make the first loop with 8 numbers, and the second loop to repeat 8 numbers into a 1x40 array

can you guys help me with the script?

Answer 1

[Walter Roberson]

The first group of values goes into columns 1 to 8. Call that group number 1, and associated indices 1 to 8.

The second group of values goes into columns 9 to 16. Call that group number 2, and associated indices 9 to 16.

Now what is the offset between the indices of the second group and the indices of the first group? well, (9:16)-(1:8) is all 8's.

The third group of values goes into columns 17 to 24. Call that group number 3, and associated indices 17 to 24.

Now what is the offset between the indices of the third group and the indices of the second group? Well, (17:24)-(9:16) is all 8's. What is the offset between the indices of the third group and the indices of the first group? Well, (17:24)-(1:8) is all 16's, which is 2*8 .

If you continue to the 4th group, the offset between the indices of the 4th group and the indices of the first group would be all 24's, which is 3*8 .

If you think about this for a moment, the offset between the indices for the N'th group and the 1st group is going to be (N-1)*8

So if you were to loop over group number, N, then the indices to write at would be at offset (N-1)*8 from the indices for plain loop that would be over 1:8

[Jihan Alfira]

wow thank you for the help

but i am newbie in matlab so im not really good at matlab, could you please give me a lil script so at least i can imagine the whole structure?

[Walter Roberson]

for group_number = 1 : something
    offset_to_start_of_group = a calculation involving group_number
    for local_index = 1 : something
        output(offset_to_start_of_group + local_index) = something
    end
end

[Jihan Alfira]

thank you so much! this help a lot