Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Don't miss out! 2025 Microsoft Fabric Community Conference, March 31 - April 2, Las Vegas, Nevada. Use code MSCUST for a $150 discount. Prices go up February 11th. Register now.

Reply
Anonymous
Not applicable

How to calculate logarithemic regression : Y = a + b * ln (X) manually using DAX?

Calculated Liner regression Y= mx+c using below calculation

 

 

LinearTrend-A-MB = 
VAR Known =
FILTER (
SELECTCOLUMNS (
CALCULATETABLE ( VALUES ( ConsumptionDate[DateNumber] ), ALLSELECTED (ConsumptionDate) ),
"Known[X]", 'ConsumptionDate'[DateNumber],
"Known[Y]", PatientsNormalized[A-MB]
),
AND ( NOT ( ISBLANK ( Known[X] ) ), NOT ( ISBLANK ( Known[Y] ) ) )
)
VAR Count_Items =
COUNTROWS ( Known )
VAR Sum_X =
SUMX ( Known, Known[X] )
VAR Sum_X2 =
SUMX ( Known, Known[X] ^ 2 )
VAR Sum_Y =
SUMX ( Known, Known[Y] )
VAR Sum_XY =
SUMX ( Known, Known[X] * Known[Y] )
VAR Average_X =
AVERAGEX ( Known, Known[X] )
VAR Average_Y =
AVERAGEX ( Known, Known[Y] )
VAR Slope =
DIVIDE (
Count_Items * Sum_XY - Sum_X * Sum_Y,
Count_Items * Sum_X2 - Sum_X ^ 2
)
VAR Intercept = Average_Y
- Slope * Average_X
RETURN
SUMX( DISTINCT ( ConsumptionDate[DateNumber] ),
Intercept + Slope * ConsumptionDate[DateNumber]
)

Please help me how to calculate logarithemic regression : Y = a + b * ln (X) ?

 

1 REPLY 1
negi007
Community Champion
Community Champion

@Anonymous  Have you tried looking at below link for help

 

https://towardsdatascience.com/building-and-optimizing-multiple-linear-regression-in-powerbi-using-dax-ed468e1ec2ae

 

https://www.bluegranite.com/blog/simple-linear-regression-in-power-bi

 

https://stackoverflow.com/questions/48796873/multiple-linear-regression-in-power-bi

 




Did I answer your question? Mark my post as a solution!
Appreciate your Kudos



Proud to be a Super User!


Follow me on linkedin

Helpful resources

Announcements
Las Vegas 2025

Join us at the Microsoft Fabric Community Conference

March 31 - April 2, 2025, in Las Vegas, Nevada. Use code MSCUST for a $150 discount!

Jan25PBI_Carousel

Power BI Monthly Update - January 2025

Check out the January 2025 Power BI update to learn about new features in Reporting, Modeling, and Data Connectivity.

Jan NL Carousel

Fabric Community Update - January 2025

Find out what's new and trending in the Fabric community.