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Anonymous's avatar
Anonymous
Not applicable
8 years ago
Solved

Segmentation

Hello,   I looking for a solution for the following problem. I need to be able to analyze data for a period based on the first occurence for the customer in the period and its previous activity. I ...
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  • Anonymous's avatar
    Anonymous
    8 years ago

    I think I finally found the solution by Adjusting Dynamic Segmentation pattern to my case:

    Cat = 
CALCULATE ( DISTINCTCOUNT(Customer[Id]),
FILTER ( ADDCOLUMNS ( Customer,"CustomerDiff",
CALCULATE ( FIRSTNONBLANK(TOPN ( 1, VALUES (FactTable[DiffInDays] ), FactTable[DiffInDays] ),1),
CALCULATETABLE ( Customer )
,ALLSELECTED ()
)
),
COUNTROWS (
FILTER (
'Cat', NOT(ISBLANK([CustomerDiff])) &&
[CustomerDiff] >= Cat[MinDiff]
&& [CustomerDiff] <= Cat[MaxDiff]
)
) > 0
)

     

    As I am not able to work with the earlier function I adjusted the formula: 

    Previous Date = 
var currentDate = FactTable[Date]
var currentCustomer = FactTable[Id]
VAR val = CALCULATE(MAX('FactTable'[Date]),
FILTER(ALL('FactTable'),
'FactTable'[Date] < currentDate
&& 'FactTable'[Id] = currentCustomer
)
)
return IF(ISBLANK(val),DATEVALUE("2017/01/01"),val)

    Is Earlier function better ?

     

     

Anonymous's avatar
Anonymous
Not applicable
8 years ago

Anonymous，

When the period is between 2017-11-28 and 2017-11-30, the previous date for customer 1 is 2017-11-27, right? If so, please create the following columns in your fact table.

previous date = CALCULATE(FIRSTNONBLANK(Table1[Date],Table1[Date]),FILTER(Table1,Table1[Customer id]=EARLIER(Table1[Customer id])&& Table1[Value]=EARLIER(Table1[Value])+1))

Daysdiff = DATEDIFF(Table1[previous date],Table1[Date],DAY)

Then create the following measures in the fact table.

maxday per customer = MAX(Table1[Daysdiff])

Category = IF([maxday per customer]<>BLANK()&&([maxday per customer]= 0 || [maxday per customer]= 1), "Cat 1",IF([maxday per customer]<>BLANK() && [maxday per customer]>=2 && [maxday per customer]<=5,"Cat 2","Cat 3" ))




Regards,
Lydia