Personalized Date Table Weeks with Index

[Anonymous]

Hello , i have to build a report , from data wich is manually asign the week (no date column , and sometimes with 6 weeks) 

That makes impossible use a date table 

I figured to use a index table and relate to the data table creating a index and creating a order column to set the order of the weeks by month and year 

What im having trouble is to get the data in a Week over Week format , 

Example 

im in the week 4 in december and i like to get the data for last week using the index table and order column 

i tried to use filter and all , but when i put the measure in the table it shows blank 

Attached is the example PBIX 

But this is a sample of the data table

week_index	MONTH	week	pais	sub	actuals	pc
FY22-Nov-W2	Nov	W2	ECKP	FOV	1000	BIO22
FY22-Nov-W1	Nov	W1	ECKP	FOV	2000	BIO22

and this is the sample of the index table i created 

FY	MONTH	WEEK	INDEX	ORDER
FY22	Nov	W2	FY22-Nov-W2	37
FY22	Nov	W1	FY22-Nov-W1	36

What i like to archieve is when i select a week in a filter and a month in actuals -1 i get the value from last week :

PC	ACTUALS (selected in filter nov , w2)	ACTUALS -1 (last week) measure???
BIO22	1000	2000

[v-yanjiang-msft · Accepted solution]

Hi @Anonymous ,

According to your description, you want to get the last week's actual by the week index filter, here's my solution.

This is my sample data.

This is my measure.

Measure = 
CALCULATE (
    MAX ( 'Table'[Actuals] ),
    FILTER ( ALL ( 'Index' ), 'Index'[ORDER] = MAX ( 'Index'[ORDER] ) - 1 )
)

Get the expected result.

I attach my sample below for reference.

Best Regards,
Community Support Team _ kalyj

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[VahidDM]

Hi @Anonymous 

Please see this link:

https://www.vahiddm.com/post/weekly-time-intelligence-dax

If this post helps, please consider accepting it as the solution to help the other members find it more quickly.
Appreciate your Kudos!!
LinkedIn: www.linkedin.com/in/vahid-dm/

[amitchandak]

@Anonymous , refer if my WOW blog can help

Power BI — Week on Week and WTD
https://medium.com/@amitchandak.1978/power-bi-wtd-questions-time-intelligence-4-5-98c30fab69d3
https://community.powerbi.com/t5/Community-Blog/Week-Is-Not-So-Weak-WTD-Last-WTD-and-This-Week-vs-Last-Week/ba-p/1051123
https://www.youtube.com/watch?v=pnAesWxYgJ8

measure example using week rank in a date table

This Week = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=max('Date'[Week Rank])))
Last Week = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=max('Date'[Week Rank])-1))

new columns in date table

new columns
Week Start date = 'Date'[Date]+-1*WEEKDAY('Date'[Date],2)+1
Week End date = 'Date'[Date]+ 7-1*WEEKDAY('Date'[Date],2)
Week Rank = RANKX(all('Date'),'Date'[Week Start date],,ASC,Dense)
OR
Week Rank = RANKX(all('Date'),'Date'[Year Week],,ASC,Dense) //YYYYWW format

[Anonymous]

Hello ,thank you for you answer , but is not what i asked , i dont have a date table , because the data has no date field 

The field used to relate the data and the index is the week_index field , that is because that information comes from the folder where the files are hosted 
EX : 
with powerquery , when i get the data i use the folder name ( FY , Month, Week) to order the data in time