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How to define the step increment of iteration inside the loop

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Hi,
I want increment the iteration 'i' by 3 on each iteration completes and the next iteration statrt from the incremented 'i'.
Code working:
A=[1;2;4;6;7;11;78;12;32;14;32;45];
for i=1:3:size(A,1)
disp(i)
% i=i+3;
% disp(i)
disp('.....')
end
but when I use below code, it does not works
A=[1;2;4;6;7;11;78;12;32;14;32;45];
increment=3;
for i=1:size(A,1)
disp(i)
i=i+increment;
%disp(i)
% disp('.....')
end
can't we define the increment like above?
Thanks in advance,

  1 Comment

Stephen Cobeldick
Stephen Cobeldick on 1 Jun 2019
"can't we define the increment like above?"
Nope. You already defined the iteration variable in the for loop definition. What happens inside the loop does not change the for loop definition.

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Accepted Answer

KALYAN ACHARJYA
KALYAN ACHARJYA on 1 Jun 2019
Edited: KALYAN ACHARJYA on 1 Jun 2019
In your second cod the iteration steps depends on i, its changing changing the step size 1 as defined in for loop statement
for i=1:size(A,1) %it means i=1,2,3,4...
Replace it with
for i=1:increment:size(A,1)
disp(i);
end
The following vector is same as above
i=1:3:size(A,1);
Which is definitely same as first code.

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