Alteryx Designer Desktop Discussions

Find answers, ask questions, and share expertise about Alteryx Designer Desktop and Intelligence Suite.
SOLVED

Regression model statistics

JuhaP
7 - Meteor

Hi all,

 

I built a simple regression model with Linear Regression Tool and when looking at the model statistics I noticed that model statistics from output anchor R produces different numbers compared to numbers from output I. Shouldn't they be exactly same for example in case of Adjusted R Squared.

 

See png for details.

 

Cheers,

 

Juha 

5 REPLIES 5
RolandSchubert
16 - Nebula
16 - Nebula

Hi @JuhaP ,

 

aside from rounding (I: 3 digits, R: 4 digits), the numbers should be same, as it is for F-statistics and coefficient. Haven't had this issue before (or at least not realized). Is it only for this specific model?

 

Best

 

Roland

JuhaP
7 - Meteor

Hi,

 

I'm afraid this is not a first time I notice the difference in these model stats, tested with several models using Linear Regression. I believe stats on the left side of the picture are correct. Tested with, believe or not, in Excel 😉

JuhaP
7 - Meteor

Hi again,

 

Looks like dropping the model constant (alfa) messes the I Output. Strange. 

RolandSchubert
16 - Nebula
16 - Nebula

Exactly that happens. Just reproduced it with one of my models. Seems to be a bug.

JuhaP
7 - Meteor

Hi  

 

 

Labels