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Anonymous's avatar
Anonymous
Not applicable
3 years ago

Calculating Weekly Bucket Difference

Hello Guys,

 

the following challenge: 

For our inventory tracking, we build groups:

green = < 30 days

yellow = 30 - 90 days

red = > 90 days 

 

In Power Bi we realized that with the SWITCH statement 

Group by Age =

SWITCH(

    True(),

    fact_stock[age in days]>=90,"3. >=90 days",

    fact_stock[age in days]>=30,"2. 30 - 90 days",

     fact_stock[age in days]>=0,"1. <= 30 days"          )

 

-> this statement work fine. the age in days is in database. 

-> the fact_table is a weekly export with the following structure:

-> the unique ID  is an Stock unit ID

date

stock unit id

value

age in days

group by age

05.03.2023

12345679

100

23

< 30 days

05.03.2023

12345678

250

90

> 90 days

05.03.2023

12345677

100

89

30 - 90 days

05.03.2023

12345676

50

33

30 - 90 days

12.03.2023

12345679

50

30

30 - 90 days

12.03.2023

12345678

50

97

> 90 days

12.03.2023

12345677

null

null

consumed

12.03.2023

12345676

25

40 

30 - 90 days

12.03.2023

12345684

75

2

< 30 days

 

Following questions i have to answer every monday:

- which stock units are new in comparison to previuos week 

- which stock units are consumpted in comparison to previus week?

- which stock units changed the age bucket?

- for example: stock unit 12345678 changed from 30 - 90 days into bucket > 90 days 

 

 

How should i build this in power bi?

 

 

2 Replies

  • To report on things that aren't there you need to use disconnected tables and crossjoins.

     

    Status = 
    SWITCH(TRUE(),
    min(Weeks[date])=CALCULATE(min(Weeks[date]),all(Weeks[date])),BLANK(),
    not isblank([val]) && isblank(calculate([Val],DATEADD(Weeks[date],-7,DAY))),"new this week",
    isblank([val]) && not isblank(calculate([Val],DATEADD(Weeks[date],-7,DAY))),"consumed",
    [Bucket]<>(calculate([Bucket],DATEADD(Weeks[date],-7,DAY))),"bucket change")

     

    see attached

  • Hi,

    The last question is the most interesting one so i will take that up later.  For the first 2 questions, could you kinldy share the following:

    1. Download link of the PowerBI file
    2. A Calendar table with a week column in there
    3. The expected result of the first 2 questions based on the sample data that you have shared in your post.