Nested loop error and saving result
2 views (last 30 days)
Show older comments
Getitng an " Index in position 1 is invalid. Array indices must be positive integers or logical values." error. What am I not doing right in this loop?
i = 0
results = [];
quantity=35;
for p = 1:quantity-2
totalp = 0.23.*p + 4.0
for q = p+1: quantity - 1
totalq = 0.91.*q + 1.3
for r = q+1: quantity
totalr = 0.30.*r + 3.3
total = totalp + totalq + totalr;
results(i,:) = [p,q,r,total]; %error is here: " Index in position 1 is invalid. Array indices must be positive integers or logical values."
i = i +1;
end
end
end
results
I am working with matrices only for my work. Thanks for your time in advance.
0 Comments
Accepted Answer
Walter Roberson
on 2 Jul 2020
You start i = 0. You do not increment i until after you store a value. So the first time through, you are storing into results(0,:) . Which is not a valid location. Indices in MATLAB must start at 1.
You should move the
i = i +1;
to just before the assignment.
More Answers (0)
See Also
Categories
Find more on Loops and Conditional Statements 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!