cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Anonymous
Not applicable

Trend Analysis - Subsequent Data Points

Hello everyone,

I need to do trend analysis, such as:
If the previous 7 data points are always decreasing then we flag 1 else we flag 0.
I have the following code which works, but I am thinking if there is a better than then having this somewhat heavy IF condition:

 

measure1 = 
var _7 = DATEADD(MasterCalendar[Date],-7,MONTH)
var _6 = DATEADD(MasterCalendar[Date],-6,MONTH)
var _5 = DATEADD(MasterCalendar[Date],-5,MONTH)
var _4 = DATEADD(MasterCalendar[Date],-4,MONTH)
var _3 = DATEADD(MasterCalendar[Date],-3,MONTH)
var _2 = DATEADD(MasterCalendar[Date],-2,MONTH)
var _1 = DATEADD(MasterCalendar[Date],-1,MONTH)

var L7MSales = CALCULATE([Local Sales],_7)
var L6MSales = CALCULATE([Local Sales],_6)
var L5MSales = CALCULATE([Local Sales],_5)
var L4MSales = CALCULATE([Local Sales],_4)
var L3MSales = CALCULATE([Local Sales],_3)
var L2MSales = CALCULATE([Local Sales],_2)
var L1MSales = CALCULATE([Local Sales],_1)

return

SWITCH(TRUE(),(L7MSales < L6MSales &&
            L6MSales < L5MSales &&
            L5MSales < L4MSales &&
            L4MSales < L3MSales &&
            L3MSales < L2MSales &&
            L2MSales < L1MSales),1,0)

Another one especially heavier is to analyze if three out of the past four data are higher then their treshold value.

var _6 = DATEADD(MasterCalendar[Date],-6,MONTH)
var _5 = DATEADD(MasterCalendar[Date],-5,MONTH)
var _4 = DATEADD(MasterCalendar[Date],-4,MONTH)
var _3 = DATEADD(MasterCalendar[Date],-3,MONTH)
var _2 = DATEADD(MasterCalendar[Date],-2,MONTH)
var _1 = DATEADD(MasterCalendar[Date],-1,MONTH)


var L6MSales = CALCULATE([Local Sales],_6)
var L5MSales = CALCULATE([Local Sales],_5)
var L4MSales = CALCULATE([Local Sales],_4)
var L3MSales = CALCULATE([Local Sales],_3)
var L2MSales = CALCULATE([Local Sales],_2)
var L1MSales = CALCULATE([Local Sales],_1)

var T6MSales = CALCULATE([Threshold],_6)
var T5MSales = CALCULATE([Threshold],_5)
var T4MSales = CALCULATE([Threshold],_4)
var T3MSales = CALCULATE([Threshold],_3)
var T2MSales = CALCULATE([Threshold],_2)
var T1MSales = CALCULATE([Threshold],_1)

return

    SWITCH(TRUE(),(L1MSales > T1MSales && L2MSales > T2MSales&& L3MSales > T3MSales),1,
    (L2MSales > T2MSales && L3MSales > T3MSales&& L4MSales >T4MSales),1,
      (L3MSales > T3MSales && L4MSales > T4MSales&& L1MSales >T1MSales),1,
        (L4MSales > T4MSales && L2MSales > T2MSales&& L1MSales >T1MSales),1,0)
                             


These are working measures, but I feel I am being highly inefficient. Any one with better approaches?

Thanks in advance!

2 REPLIES 2
amitchandak
Super User
Super User

Can you try doing count distinct of Month year for the last 7 Months in one go? And if it 7 then you have all seven months data



Learn Power BI - Full Course with Dec-2022, with new DAX functions like Window, Index, Offset !!
Did I answer your question? Mark my post as a solution! Appreciate your Kudos !! Proud to be a Super User! !!
Formatted Profit and Loss Statement with empty lines
Anonymous
Not applicable

But I am not trying to know if I have data points on those months, I am trying to understand if they are growing one after the other or not.. (at least in the 1st example).

Thus I have all those conditions with a sequence coming from the latest to the news always comparing if they are bigger than previous

Helpful resources

Announcements
Carousel_PBI_Wave1

2023 Release Wave 1 Plans

Power BI release plans for 2023 release wave 1 describes all new features releasing from April 2023 through September 2023.

Power BI Summit Carousel 2

Global Power BI Training

Make sure you register today for the Power BI Summit 2023. Don't miss all of the great sessions and speakers!

Thank you 2022 Review

2022 Monthly Feature Releases

We had a great 2022 with a ton of feature releases to help you drive a data culture.