How to define the step increment of iteration inside the loop

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Mekala balaji
Mekala balaji 2019-6-1
评论： Mekala balaji 2019-6-1
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 个评论
Stephen23
Stephen23 2019-6-1
"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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KALYAN ACHARJYA
KALYAN ACHARJYA 2019-6-1
编辑：KALYAN ACHARJYA 2019-6-1
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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