FOR loop and keep every 10th iteration

Hi,
I am looking for a tricky command which I can use it inside a 'for' loop which will enables me to allow the loop works in every 10th step.
For example:
k=0
for i=1:30
(command)
k=k+1
end
So at the end of the 'for' loop I want k=3.
Any idea?? Many thanks!!

 采纳的回答

A few things:
First, try to avoid using i as a variable, because by default in Matlab i = sqrt(-1). I'm going to switch your i to n.
As you've set up your loop, k and i will always be the same. Why not just use,
for n = 1:10:30
(commands)
end
If you need to run the loop for n = 1:30 (the same thing as n = 1:1:30), but you want to do some special commands when n = 1, 11, and 21, consider using mod.
for n = 1:10:30
(commands)
if mod(n,10)==1
(do something fancy)
end
end

4 个评论

Thank you Chad. It looks fine.
Chad, using exactly your 2nd example, if I want to do some special commands when n=10,20,30 how can i write the mod command??
Thanks

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