A compact “if” statement using “or” operator
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A more compact way to write the “if” statement using “or” operator, than this one?
if i == 1 || i == 2 || i == 7 || i == 8 || i == 10
% ...
end
Something similar to this statement?
if i == [1 2 7 8 10]
% ...
end
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Dyuman Joshi
le 1 Juin 2023
Modifié(e) : Dyuman Joshi
le 1 Juin 2023
Yes there is - ismember
vec = [1 2 7 8 10];
i = 4;
%Checks if elements in i are present in vec or not
ismember(i,vec)
if ismember(i,vec)
disp('if')
else
disp('else')
end
7 commentaires
Dyuman Joshi
le 1 Juin 2023
Modifié(e) : Dyuman Joshi
le 1 Juin 2023
It is interesting to note that anyEq() is the fastest for first element and the slowest for the last element, and there timings of any() and ismember() are similar.
Edit - In the Overview section of the FileEx submission, Jan mentions - "Best case (first element matches): 99.99% faster for 1e6 elements (Matlab 2011b/64, MSVC 2008)"
%From the above tests done by James Tursa
n_any = 4.766502e-04;
n_is = 8.393297e-04;
n_eq = 4.046598e-06;
1-n_eq/n_any
1-n_eq/n_is
And it still holds.
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