How do I remove outliers in data so that vectors are of the same length for plotting?
8 views (last 30 days)
Show older comments
Please see the attached excel file.
X = First column data
Y = Second column data
I have to ensure that both the vectors are of the same length for plotting and curve-fitting purpose. How do I get rid of the outliers in the Y-values such that the corresponding X-values are also lost?
0 Comments
Accepted Answer
Matt J
on 12 Jun 2024
Perhaps something like this,
[Y,discard]=rmoutliers(Y);
X(discard)=[];
0 Comments
More Answers (1)
Shivani
on 12 Jun 2024
Edited: Shivani
on 12 Jun 2024
Hello @Vikash Pandey
Based on my understanding, the 'rmoutlier' would be the correct function to obtain the results you are looking for. The documentation states that,
- If A is a matrix, then rmoutliers detects outliers in each column of A separately and removes the entire row.
You will need to replace column 'A' with 'y' in the above example. This will identify all outliers in column 'y' and remove the corresponding rows, ensuring that 'x' is also removed.
I am attaching MATLAB documentation links that provide further information on this below for your reference:
- https://www.mathworks.com/help/matlab/ref/rmoutliers.html
- https://www.mathworks.com/help/curvefit/removing-outliers.html
- https://www.mathworks.com/help/matlab/data_analysis/data-smoothing-and-outlier-detection.html
- https://www.mathworks.com/help/matlab/ref/cleanoutlierdata.html
- https://www.mathworks.com/help/thingspeak/remove-outliers-in-your-data.html
Additionally, you can also refer to the following MATLAB answer thread for more details:
0 Comments
See Also
Categories
Find more on Measurements and Feature Extraction in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!