Need help with for loop

hi. i'm trying something simple but i lilterally don't get it why it doesn't works in MATLAB. (i'm not familiar with using MATLAB, but C/C++)

so, here's my code :

for i = 1 : n-4
    for j = j+1 : n-4
        for k = j+1 : n-4
            for l = k+1 : n-4
                %% other codes
            end
        end
    end
end

i've try to excute the code above, but the second for loop didn't excute. (it just slipped away)

i know it works on C/C++ or Python. so, what did i missed?

is it because MATLAB wouldn't allow this kind of for loops or something else?

[Torsten]

The setting

for j = j+1 : n-4

makes no sense.

Maybe you mean

for j = i+1 : n-4

?

[준상 정]

yes i was meant

for j = i+1 : n-4

but it doesn't work either.

[Torsten]

Then the error lies in the part "other codes".

Answer 1

[jedak]

Where you define you variable j?

If you define a loop as:

for j=a:b

(code)

end

a should be <= b

if not the loop is not going to work.