File Exchange > Graphing >    Outlier Detector

Author:
OriginLab Technical Support
Date Added:
10/18/2017
Last Update:
9/26/2018
Downloads (90 Days):
175
Total Ratings:
9
File Size:
26 KB
Average Rating:
File Name:
OutlierDetector.opx
File Version:
1.20
Minimum Versions:
License:
Free
Type:
App
Summary:

Mark outliers on graphs or worksheet columns

Screen Shot and Video:
Description:

To run the app, start with a worksheet column or a single scatter plot.

Click the app icon to launch the dialog.

  • When scatter plot is selected:
  1. Select outlier searhing method, set a confidence level if needed.
  2. Click Mask to mask the points in the preview window.
  3.  Click OK to apply the change. Click Cancel to restore the graph.
  • When a numeric worksheet column is selected:
  1. Select outlier searhing method, set a confidence level if needed.
  2. Check Outlier Indicator checkbox to generate a indicator column.
  3. Click OK to apply the change. 

Note that Grubbs, Dixon and Iterative Grubbs methods look only at the Y data values, whereas Linear Regression needs both X and Y values to determine the outliers.

Updates:

v1.1 supports finding outliers of a certain column in a worksheet.
v1.2 Bug fixed.

Reviews and Comments:
04/16/2023SerbianNSa fascinating and powerful tool

01/27/2022OriginLabHi Alexe1993, would you mind to share with us your data that we can test the iterative grubb? Please use the link below
https://www.originlab.com/restricted/support/newticket.aspx

01/25/2022Alexe1993I would like to execute Generalized Extreme Studentized Deviate Test. I dont know how with originPro, I researched how but I didint find. I can do on Excel with function ESD but its very very long. For now, if I use iterative grubbs test and that my value with largest G is not a outlier, the iterative grubb test stop. Sometime, the first value is not a outlier, but the second one yes and with this case the two values are outliers. It will be very good if we can test more than 1 value. The principle behind is when the first value is not a outlier, another grubbs test is perfom but the first value is remove to calculate the new statistic. This is an example with excel, I estimated that I has 4 outliers, finally it was 3 because the third one was outlier and the satistic calculated for the third values dont has the first, second values.

(Outlier ) 5,314 4,966 4,763 4,103
(Gsats) 2,110 2,128 2,457 1,623
(Gcrtiq) 2,462 2,412 2,355 2,290
(sig) no no yes no

12/07/2020vghazikhanianThat is correct. For example in your linear regression fitting, a data outside 2 sigma band is selected as outlier. I would like to be able to set the width of the 2 sigma band to an arbitrary value (e.g., 2.5 sigma or 3 sigma etc.).

12/07/2020yimingc@vghazikhanian, do you mean you wants the outliers beyond the confidence band with certain sig level?

12/04/2020vghazikhanianI would like to be able to vary the confidence interval for the outlier detection.

01/26/2018Hideo FujiiBy the way, could you please try to upgrade your Origin 2017(Sr0) to Sr1. This may also solve the problem.

01/26/2018Hideo FujiiHi Derowa89,
I tried several ways, but I couldn't reproduce the problem. The dialog appeared fine. If you are using multiple monitors, then not in the second monitor? Or, can you check the following Registry entry in the left panel of the registry editor?
Computer> HKEY_CURRENT_USER> Software> OriginLab> [[Your Origin ver. e.g. Origin 9.5]]> International> Dialog> Outlier Detector
If you find this entry, you can delete this entry (by selecting it and presssing DEL key) so that the dialog will be regenerated with the default size and position. If else, you can tell us more about your computer environment - mail to tech@originlab.com .
--Hideo Fujii, OriginLab

11/22/2017Derowa89Its not working. The dialog did not open.