Why isn't this value being saved using ismember and round?

2 vues (au cours des 30 derniers jours)
Wolfgang McCormack
Wolfgang McCormack le 13 Mar 2021
Hi all,
I have the following code and it almost works for all my values except two. Nothing being saved in Xsaved
AllRatios = ([0.1:0.05:1])
%it does not work for the following ratios: 0.45 and 0.65. I wonder if
%that's because thry are less than 0.45 and are rounded or not!
Actualvalue = 0.448533333333333
CurRatio= round(Actualvalue,2) % it returns 45, I tried it with 'significant' method as well
for i = 62:62
if ismember(CurRatio,AllRatios)
Xsaved(1,i) = ([CurRatio])
else
NoSaved = 0
end
end

Réponse acceptée

Star Strider
Star Strider le 13 Mar 2021
Since decimal fractions are never exact (even using round), use ismembertol (introduced in R2015a) for the comparisons. It will be necesary to experiment with the tolerance value to get it to work as desired.

Plus de réponses (0)

Catégories

En savoir plus sur Loops and Conditional Statements dans Help Center et File Exchange

Produits


Version

R2020b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by