for loop for different set of values

조회 수: 188 (최근 30일)
Muhammad Usman
Muhammad Usman 2015년 6월 22일
댓글: Rafiqul Islam 2022년 10월 31일
Hi, i want to run for loop with different set of values as for example
for i = 2:6,17:22
Y= 2*i;
End
Please do it ASAP

채택된 답변

Tim
Tim 2015년 6월 22일
편집: Tim 2015년 6월 22일
A more polite way to ask in the event of urgency would be something like:
"I really need help on this one, time is a factor!"
a =[2:6 17:22]
for i=1:length(a)
y=2*a(i)
end
Or if you want to do it without a loop use vector form, which is generally more efficient in MATLAB:
a =[2:6 17:22];
y=2.*a;

추가 답변 (2개)

Azzi Abdelmalek
Azzi Abdelmalek 2015년 6월 22일
편집: Azzi Abdelmalek 2015년 6월 22일
It's better to avoid the variable i, because it's used by Matlab with complex numbers.
for ii= [2:6,17:22]
Y= 2*ii;
end

Walter Roberson
Walter Roberson 2015년 6월 22일
for i = [2:6,17:22]
Y = 2*i;
end
Note that you are overwriting Y completely each time, which is a common error in for loops. When you are looping over values that are not consecutive integers and you want to get one output value for each input value then use something like
ivals = [2:6,17:22];
for k = 1 : length(ivals);
i = ivals(k);
Y(k) = 2 * i;
end
  댓글 수: 2
Amir Mohammad Babaie Parsa
Amir Mohammad Babaie Parsa 2022년 5월 25일
편집: Amir Mohammad Babaie Parsa 2022년 5월 25일
Hi
It really helped me, Thanks a zillion.
Rafiqul Islam
Rafiqul Islam 2022년 10월 31일
Walter Roberson Thanks a lot

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