How can I access the previous index of a vector?
3 views (last 30 days)
Show older comments
Khalid Khawaja
on 24 Apr 2017
Commented: Khalid Khawaja
on 24 Apr 2017
Hello friends,
I am trying to write a code to generate random vectors. Some of the variables are integer whereas a few are real numbers. Following is the code:
xL=[1 500 1 500];
xU=[37 1400 37 1400];
Xint=[1 3];
nvar=4;
for xV=1:nvar
if Xint(xV)==xV
InPoP(:,xV) = randi([xL(xV) xU(xV)],Popu_size,1);
else
InPoP(:,xV) = (xU(xV)-xL(xV)).*rand(Popu_size,1) + xL(xV);
end
end
Xint vector shows that first and third elements should be generated as integer. The problem is when the loop moves away from x=2. It cannot access the elements of Xint to know the number. I would be grateful if someone can share the solution of the problem.
Regards
2 Comments
KSSV
on 24 Apr 2017
You have in Xint only two numbers and you are trying to access four numbers out of it. Make Xint to have four numbers i.e include few more numbers.
Accepted Answer
More Answers (1)
Roger Stafford
on 24 Apr 2017
You don’t appear to use ‘Xint’ for any other purpose than deciding whether to use integers or reals. Therefore I suggest you change it to:
Xint = [1 0 1 0];
for xV=1:nvar
if Xint(xV) == 1
% Use integers
else
% Use reals
end
See Also
Categories
Find more on Logical in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!