excel if statement to matlab
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Engineer Undergoing
il 30 Lug 2021
Commentato: Rik
il 2 Ago 2021
hi
so i know there are many efieciant ways to do things on matlab without the need to use the if statement, and I was wondering if someone could help out on converting this excel formula/code to matlab without the need for a double if statements
=IF(AND(E5=0,E4<>0),F4+1,F4)
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Monika Jaskolka
il 30 Lug 2021
Modificato: Monika Jaskolka
il 30 Lug 2021
I don't see that a "double if" is necessary:
x = 0;
if (~E5 && E4)
x = F4 + 1;
else
x = F4;
end
If you are asking for a one line conditional assignment like below, Matlab doesn't support this syntax
condition ? true-expression : false-expression
6 Commenti
Monika Jaskolka
il 2 Ago 2021
Below is a direct translation, but if you are simply counting non-zero elements in E, you should look into the nnz command for a simpler solution.
% Init data
E = zeros(19,1);
E(15) = -0.333333;
E(16) = 0.333333;
F = ones(19,1);
F(17:end) = 2;
for i = 1:length(E)-1
if ~E(i+1) && E(i)
F(i) = F(i) + 1;
end
end
Rik
il 2 Ago 2021
@Monika Jaskolka Consider teaching yourself to use numel instead of length. It is never a worse option, and it might save you from a difficult bug hiding in your program due to array input (instead of vector inputs).
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