Error using griddedInterpolant. The grid vectors must contain unique points
84 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
Vince Clementi
il 20 Lug 2017
Commentato: Julien Rosele
il 22 Giu 2020
Hi All,
Trying to plot two different datasets with a uniform x-axis I ran through a loess filter. My code for the interp/plotting worked on one dataset, but not on another. Can't seem to figure out the issue here.
The one that worked:
% Interpolation Method
% y1 = first dataset
% yn = nth dataset
% yn = interp1(x,y,std x component,'[insert optional interp method]')
% repeat for nth datasets
y1 = interp1(x87Age,y87C,t_comp87);
y2 = interp1(x41Age,y41C,t_comp41);
plot(x87Age,y87C,'o');
hold on
plot(x41Age,y41C,'o');
plot(t_comp87,y1);
plot(t_comp41,y2);
The one that didn't work
% Interpolation Method
% y1 = first dataset
% yn = nth dataset
% yn = interp1(x,y,std x component,'[insert optional interp method]')
% repeat for nth datasets
y1 = interp1(x87Age,y87C,t_comp87);
y2 = interp1(x79Age,y79C,t_comp79);
plot(x87Age,y87C,'o');
hold on
plot(x79Age,y79C,'o');
plot(t_comp87,y1);
plot(t_comp79,y2);
Any ideas???
0 Commenti
Risposta accettata
Ankitha Kollegal Arjun
il 24 Lug 2017
This error generally occurs when there are duplicate points in the input to 'interp1'.
You can remove duplicates using 'unique' function.
For Example,
[x, index] = unique(x);
yi = interp1(x, y(index), xi);
Please apply the above logic to your code and see if it resolves the issue.
5 Commenti
lakshman s
il 9 Mag 2020
Suppose there are 2 points of Y for 1 value of x. Then how to get the value of both the data points? No point is duplicate for me.
Più risposte (0)
Vedere anche
Categorie
Scopri di più su Interpolating Gridded Data in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!