Nested loop error and saving result
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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.
采纳的回答
Walter Roberson
2020-7-2
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.
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