User Community
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • DownloadSemiconductor Toolkit: Tools to create wafer maps, add wafer geometry to graphics, explore die defects & compare wafers.
  • Discovery Summit 2026: Early User Edition - September 23-24.Register. It's free.
  • Use JMP Clinical with CDISC-compliant data. Review studies, ID safety and efficacy signals & communicate findings with interactive graphics. Register to see how. Aug. 27, 2 pm US ET.

Discussions

Solve problems, and share tips and tricks with other JMP users.
Choose Language Hide Translation Bar
AT
AT
Level V

Mahalanobis distance in JMP differs from other methods

Jan 26, 2018 05:19 PM (7742 views)

Hi,

I am comparing Mahalanobis distance calculated by JMP vs. one reported in other tables using their software. The JMP reports for MD 2.35 +/- .54 vs. 1.23 +/- 0.68 . I was wondering if there is anything special about JMP. I have 30 data points with 6 variables.

 

I appreciate any comments. Thanks

0 Kudos
1 ACCEPTED SOLUTION

Accepted Solutions
txnelson
Super User txnelson
Super User
Solution

Re: Mahalanobis distance in JMP differs from other methods

Jan 26, 2018 05:43 PM (7993 views)  |  Posted in reply to message from AT 01-26-2018

Here is the calculation used in JMP for Mahalanobis, taken from 

     Help==>Books==>Multivariate Methods

Is it different from your undefined product?

nahalanobis.PNG

Jim

View solution in original post

3 REPLIES 3
txnelson
Super User txnelson
Super User
Solution

Re: Mahalanobis distance in JMP differs from other methods

Jan 26, 2018 05:43 PM (7994 views)  |  Posted in reply to message from AT 01-26-2018

Here is the calculation used in JMP for Mahalanobis, taken from 

     Help==>Books==>Multivariate Methods

Is it different from your undefined product?

nahalanobis.PNG

Jim
AT
AT
Level V

Re: Mahalanobis distance in JMP differs from other methods

Jan 27, 2018 07:16 PM (7692 views)  |  Posted in reply to message from txnelson 01-26-2018

Thanks Jim for the reply and definition of MD in JMP. The one I like to use is Mahalanobis distance defined in Mahalanobis Taguchi System (MTS). I have attached the definition in the attached file. It looks like there are differences. 

 

Anyone has used MTS method in JMP? ThanksMD in MTS.png

 

 

 
 
0 Kudos
David_Burnham
Super User (Alumni) David_Burnham
Super User (Alumni)

Re: Mahalanobis distance in JMP differs from other methods

Jan 28, 2018 10:13 PM (7665 views)  |  Posted in reply to message from AT 01-27-2018

More dodgy maths from Genichi Taguchi?

-Dave

Recommended Articles