File Exchange > Graphing >    2D Confidence Ellipse

Author:
OriginLab Technical Support
Date Added:
4/11/2017
Last Update:
8/3/2022
Downloads (90 Days):
1165
Total Ratings:
18
File Size:
25 KB
Average Rating:
File Name:
2D Confide...se.opx
File Version:
1.40
Minimum Versions:
License:
Free
Summary:

Add confidence ellipse to 2D scatter plot

Screen Shot and Video:
Description:

Purpose
This app is for adding confidence ellipse to a given 2D scatter plot

Installation
Download the file "2D ConfidenceEllipse.opx", and then drag-and-drop onto the Origin workspace. An icon will appear in the Apps gallery window.

Operation

  1. Activate a scatter plot graph,  either select one plot on the graph or select none.
  2. Click the app icon from the Apps gallery window.
  3. Set a confidence level (95 by default). 
  4. By default Link Axis Length to Scale with X:Y Ratio is checked. This is to avoid the resulting ellipse being distorted because of different x,y scale. 
  5. Click OK .  Confidence ellipse and the long axis and short axis of the ellipse are added to the graph. 

 

Updates:

v1.1 Bug fixed.
v1.2 Display Ellipse Parameters Label on the Graph
v1.3 Bug fixed
v1.4 Display Ellipse Center xc, yc

Reviews and Comments:
08/02/2022Ren Tian 

07/22/2022Snowdenburgperfect

04/13/2022marcoscottoHi, how I can get the coordinates of the ellipse center?
Thank you

03/10/2022CHEN XI 

02/28/2022OriginLabHi Ltay017@e.ntu.edu.sg
Do you want to find the lengths of the "Major Axes Tick and Minor Axes Tick"? You can set it in the Axis dialog. If this is not you want, you also can contact to our support team about more issues. ( https://www.originlab.com/index.aspx?go=Support/DocumentationAndHelpCenter )
Thanks
OriginLab

02/26/2022Ltay017@e.ntu.edu.sgHi, may I know how to find the lengths of the major and minor axes? or at least the coordinates? I am trying to find the area of the ellipse for my project. Thanks!

08/31/2021  

10/12/2020Ren Tian 

07/24/2020liting 

05/31/2020wafa_fawziThis Confidence Ellipse consider for mean or prediction??

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