MATLAB Answers

How do I smooth out a surface distribution plot?

4 ビュー (過去 30 日間)
Leon 2014 年 10 月 9 日
コメント済み: Leon 2014 年 10 月 11 日
Looks like my data has some outliers that should be removed.
Instead of doing that manually, is there a way I can let Matlab do it? Thanks!
In case you need, below is the code to plot the map:
[X, Y] = meshgrid(linspace(min(lon),max(lon),100),linspace(min(lat),max(lat),100));
Z = griddata (lon, lat, V, X, Y);
[C1, h1] = contourf (X, Y, Z, [0:0.1:4], 'LineStyle', 'none' );


Bruno Pop-Stefanov
Bruno Pop-Stefanov 2014 年 10 月 10 日
There is no off-the-shelf functionality in MATLAB that allows you to detect outliers in data. Techniques exist but it is still an active field of research.
You'll find a couple of File Exchange submission to remove outliers from data. For example:
Otherwise, you could maybe try to filter your data with a smoothing filter. Take a look at the filter function:
This will reduce the magnitude of peaks in your data.
  1 件のコメント
Leon 2014 年 10 月 11 日
Thank you very much for the answer! This is helpful.


その他の回答 (0 件)

Community Treasure Hunt

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

Start Hunting!

Translated by