problem with interp1
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Stetson Spencer
le 27 Nov 2018
Réponse apportée : Bruno Luong
le 27 Nov 2018
Hi, for some reason when I try to use the interp1 function it gives me an error "Error using griddedInterpolant. The grid vectors must contain unique points."
but in my code I already accounted for that by doing the following:
dnew = unique([dlrg dmed dsml]);
plrg = interp1(log10(dlrg),plrg,log10(dnew),'linear','extrap');
why is it ignoring the fact that I told it to use unique points?
1 commentaire
Réponse acceptée
Matt J
le 27 Nov 2018
It is dlrg that must contain unique points. There is no requirement for uniquness on dnew.
0 commentaires
Plus de réponses (2)
Stephen
le 27 Nov 2018
Your definition of "dlrg" probably contains duplications. You aren't running unique on "dlrg" and that is the vector of values you are interpolating on. Also, you're assigning the variable name "plrg" to both the "Y" input and "yi" output of the function. That rarely ends well for me.
0 commentaires
Bruno Luong
le 27 Nov 2018
[x,i] = unique(log10(dlrg))
plrg = interp1(x,plrg(i),log10(dnew),'linear','extrap');
0 commentaires
Voir également
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!