How to work with interpolation function?
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I am trying to do the interpolation between given set of data. I used interp1 function but it is showing the error as ''The grid vectors are not strictly monotonic increasing''
A=
290.21
291.22
291.11
290.73
293.03
299
304.92
323.5
323.63
322.93
323.35
327.91
334.71
338.42
354.02
353.05
354
359.45
367.48
368.58
368.28
382.41
B=
0.10855
0.11775
0.12746
0.13738
0.14831
0.16082
0.17539
0.32785
0.35750
0.38682
0.41663
0.44895
0.48715
0.52816
0.69683
0.70275
0.70755
0.71234
0.71765
0.72197
0.72559
0.75153
I write the code like this..
x=0.2:0.1:0.5
D=interp1(B,A,x)
How to solve this problem??
Thanks
6 commentaires
Star Strider
le 19 Fév 2015
The code you posted works. What do you want to do with your data and the interpolation? You have to tell us what the problem is.
Réponse acceptée
Titus Edelhofer
le 20 Fév 2015
Hi,
in your file B67 is equal to B68. Remove one of the lines.
Titus
2 commentaires
Titus Edelhofer
le 20 Fév 2015
No, since the data on x are not monotonic. Now it depends on the application, you can e.g. sort the data (using sort or sortrows), if this makes sense.
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Matrix Indexing dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!