Alternative Methods for Interpolation or Solutions of Interpolation Errors
5 次查看(过去 30 天)
显示 更早的评论
Hi everbody.
Sometimes i give an error when making interpolation process for ex. "The values of X should be distinct error".
I have an exam this tuesday which will be done by matlab. And i am afraid of interpolation errors.
What are the alternative methods for interpolation or solutions of errors like "The values of X should be distinct" etc.?
Thanks a lot.
0 个评论
回答(2 个)
Walter Roberson
2015-12-7
The available techniques depend a great deal upon whether the Y corresponding to the duplicate X are the same or different.
If the Y values are the same then the major technique is to unique() the X values and take the corresponding Y values. One way of doing that is to use
XY = [X(:), Y(:)];
uXY = unique(XY,'rows');
uX = uXY(:,1);
uY = uXY(:,2);
interp1(uX, uY, locations_to_interpolate_at)
But typically one would instead construct the X values to be unique.
What are some circumstances under which you have had difficulty with duplicate X values?
0 个评论
Volkan Yangin
2015-12-7
3 个评论
John D'Errico
2015-12-7
Please do not add answers every time you wish to comment. Use the COMMENTS!!!!!!!!
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!