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MHTANK
Helper III
Helper III

Previous_Value_as per Day_range

‎03-17-2025 10:12 PM
DateYearMonthDay_RangeValue
09-11-2024  2024Nov1-1541.00
15-11-2024  2024Nov1-1543.00
25-11-2024  2024Nov16-3055.00
29-11-2024  2024Nov16-3058.00
03-12-2024  2024Dec1-1585.00
06-12-2024  2024Dec1-1515.00
29-12-2024  2024Dec16-3167.00
30-12-2024  2024Dec16-314.00
01-01-2025  2025Jan1-1510.00
02-01-2025  2025Jan1-1520.00
04-01-2025  2025Jan1-1521.50
05-01-2025  2025Jan1-1523.00
07-01-2025  2025Jan1-1550.00
08-01-2025  2025Jan1-1551.50
09-01-2025  2025Jan1-1521.00
10-01-2025  2025Jan1-1522.50
15-01-2025  2025Jan1-1558.00
17-01-2025  2025Jan16-31100.00
20-01-2025  2025Jan16-31101.50
22-01-2025  2025Jan16-31103.00
30-01-2025  2025Jan16-31104.50
01-02-2025  2025Feb1-15106.00
02-02-2025  2025Feb1-15107.50
03-02-2025  2025Feb1-1575.00
09-02-2025  2025Feb1-1576.50
10-02-2025  2025Feb1-1565.00
15-02-2025  2025Feb1-1566.50
18-02-2025  2025Feb16-2868.00
20-02-2025  2025Feb16-2869.50
22-02-2025  2025Feb16-2871.00
27-02-2025  2025Feb16-2872.50

This is my Data.

YearMonthDay_RangeAvgPrev
2024Nov1-1542.00 
  16-3056.5042.00
 Dec1-1550.0056.50
  16-3135.5050.00
2025Jan1-1530.8335.50
  16-31102.2530.83
 Feb1-1582.75102.25
  16-2870.2582.75

This is result that I want.

Here I want Previous value column. Here problem is that in 30 days month, 31 days month and 28 days month, 29 days month.

So, how i can solve this problem. Please suggest me.

Labels:
Message 1 of 16
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1 ACCEPTED SOLUTION
Khushidesai0109
Super User
Super User
In response to MHTANK

‎03-20-2025 05:10 AM

Prev_Value =
VAR CurrentYear = SELECTEDVALUE('YourTable'[Year])
VAR CurrentMonth = SELECTEDVALUE('YourTable'[Month_Number])
VAR CurrentCustom = SELECTEDVALUE('YourTable'[Custom])

RETURN
CALCULATE(
[Avg_Value],
TOPN(
1,
FILTER(
ALLSELECTED('YourTable'),
('YourTable'[Year] = CurrentYear && 'YourTable'[Month_Number] = CurrentMonth && 'YourTable'[Custom] < CurrentCustom) ||
('YourTable'[Year] = CurrentYear && 'YourTable'[Month_Number] < CurrentMonth) ||
('YourTable'[Year] < CurrentYear)
),
'YourTable'[Year], DESC,
'YourTable'[Month_Number], DESC,
'YourTable'[Custom], DESC
)
)

Proud to be a Super User!!

View solution in original post

Message 14 of 16
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15 REPLIES 15
Khushidesai0109
Super User
Super User

‎03-17-2025 10:27 PM

Hii @MHTANK 

You can achieve this in Power Query (M Language) by following these steps:

Solution Approach

  1. Group the data by Year, Month, and Day_Range, and calculate the average (Avg).
  2. Sort the grouped data by Year, Month, and Day_Range to ensure correct ordering.
  3. Add a column for the previous period's average (Prev) by referencing the previous row’s Avg value.

Step-by-Step Power Query Solution

  1. Load your data into Power Query.
  2. Transform the data using the following M code:
let
    // Load the data
    Source = YourTable,  
    
    // Group by Year, Month, and Day_Range and calculate the average value
    GroupedData = Table.Group(Source, {"Year", "Month", "Day_Range"}, 
        {{"Avg", each List.Average([Value]), type number}}),
    
    // Sort the table by Year, Month, and Day_Range
    SortedData = Table.Sort(GroupedData, {{"Year", Order.Ascending}, {"Month", Order.Ascending}, {"Day_Range", Order.Ascending}}),

    // Add Previous column using Index and referencing the previous row
    AddPrevColumn = Table.AddColumn(SortedData, "Prev", 
        each try SortedData[Avg]{List.PositionOf(SortedData[Avg], _)-1} otherwise null, 
        type nullable number
    )
    
in
    AddPrevColumn

Explanation of Code

  1. Groups the data by Year, Month, and Day_Range and calculates the Avg (average of Value column).
  2. Sorts the table to ensure correct chronological order.
  3. Adds the Prev column by:
    • Using List.PositionOf to get the previous row's Avg value.
    • Using try...otherwise null to prevent errors in the first row where there's no previous value.

Expected Output

Year Month Day_Range Avg Prev

2024Nov1-1542.00null
2024Nov16-3056.5042.00
2024Dec1-1550.0056.50
2024Dec16-3135.5050.00
2025Jan1-1530.8335.50
2025Jan16-31102.2530.83
2025Feb1-1582.75102.25
2025Feb16-2870.2582.75



If this helps, I would appreciate your KUDOS!
Did I answer your question? Mark my post as a solution!

Proud to be a Super User!!
Message 2 of 16
1,687 Views
MHTANK
Helper III
Helper III
In response to Khushidesai0109

‎03-18-2025 01:47 AM

Ya, this is good,
But I want this in the report matrix.

Message 3 of 16
1,644 Views
0
Khushidesai0109
Super User
Super User
In response to MHTANK

‎03-18-2025 02:03 AM

 

To achieve this in a Power BI matrix, you need to create measures instead of using Power Query. Follow these steps:Avg_Value = AVERAGE('YourTable'[Value])


 

Create the "Prev" Measure

This measure gets the previous period's average dynamically in a matrix visualization:

 

 

Prev_Value =
VAR CurrentYear = SELECTEDVALUE('YourTable'[Year])
VAR CurrentMonth = SELECTEDVALUE('YourTable'[Month])
VAR CurrentDayRange = SELECTEDVALUE('YourTable'[Day_Range])

RETURN
CALCULATE(
[Avg_Value],
FILTER(
ALL('YourTable'),
('YourTable'[Year] = CurrentYear && 'YourTable'[Month] = CurrentMonth && 'YourTable'[Day_Range] < CurrentDayRange) ||
('YourTable'[Year] = CurrentYear && 'YourTable'[Month] < CurrentMonth) ||
('YourTable'[Year] < CurrentYear)
),
LASTNONBLANK('YourTable'[Day_Range], [Avg_Value])
)

Add to the Matrix Visualization

  • Rows: Year, Month, Day_Range
  • Values: Avg_Value, Prev_Value



@MHTANK

Proud to be a Super User!!
Message 4 of 16
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0
MHTANK
Helper III
Helper III
In response to Khushidesai0109

‎03-20-2025 04:11 AM

Day_Range and Month are in "Text" data type. How "<" posible for that?

Message 5 of 16
1,593 Views
0
Khushidesai0109
Super User
Super User
In response to MHTANK

‎03-20-2025 04:21 AM

Hiii @MHTANK 

Here is the modified DAX measure

 

 

Prev_Value =
VAR CurrentYear = SELECTEDVALUE('YourTable'[Year])
VAR CurrentMonth = VALUE(SELECTEDVALUE('YourTable'[Month])) -- Convert to number
VAR CurrentDayRange = VALUE(SELECTEDVALUE('YourTable'[Day_Range])) -- Convert to number

RETURN
CALCULATE(
[Avg_Value],
FILTER(
ALL('YourTable'),
('YourTable'[Year] = CurrentYear && VALUE('YourTable'[Month]) = CurrentMonth && VALUE('YourTable'[Day_Range]) < CurrentDayRange) ||
('YourTable'[Year] = CurrentYear && VALUE('YourTable'[Month]) < CurrentMonth) ||
('YourTable'[Year] < CurrentYear)
),
LASTNONBLANK('YourTable'[Day_Range], [Avg_Value])
)

 

 

If this helps, I would appreciate your KUDOS!
Did I answer your question? Mark my post as a solution!

Proud to be a Super User!!
Message 6 of 16
1,589 Views
0
MHTANK
Helper III
Helper III
In response to Khushidesai0109

‎03-20-2025 04:30 AM

This give me error. cannot convert "Jan" of type text to type number.

Message 7 of 16
1,587 Views
0
Khushidesai0109
Super User
Super User
In response to MHTANK

‎03-20-2025 04:34 AM

Create a Numeric Month calculated Column

Create a calculated column in your table to convert month names into numbers

 

Month_Number =
SWITCH(
'YourTable'[Month],
"Jan", 1, "Feb", 2, "Mar", 3, "Apr", 4, "May", 5, "Jun", 6,
"Jul", 7, "Aug", 8, "Sep", 9, "Oct", 10, "Nov", 11, "Dec", 12,
BLANK()
)

 

 

 

Modify Your Measure to Use Month_Number

Prev_Value =
VAR CurrentYear = SELECTEDVALUE('YourTable'[Year])
VAR CurrentMonth = SELECTEDVALUE('YourTable'[Month_Number]) -- Use the numeric month column
VAR CurrentDayRange = VALUE(SELECTEDVALUE('YourTable'[Day_Range])) -- Ensure numeric comparison

RETURN
CALCULATE(
[Avg_Value],
FILTER(
ALL('YourTable'),
('YourTable'[Year] = CurrentYear && 'YourTable'[Month_Number] = CurrentMonth && VALUE('YourTable'[Day_Range]) < CurrentDayRange) ||
('YourTable'[Year] = CurrentYear && 'YourTable'[Month_Number] < CurrentMonth) ||
('YourTable'[Year] < CurrentYear)
),
LASTNONBLANK('YourTable'[Day_Range], [Avg_Value])
)

 

Proud to be a Super User!!
Message 8 of 16
1,584 Views
0
MHTANK
Helper III
Helper III
In response to Khushidesai0109

‎03-20-2025 04:42 AM

not working
not getting output

Message 9 of 16
1,579 Views
0
Khushidesai0109
Super User
Super User
In response to MHTANK

‎03-20-2025 04:44 AM

you getting any error?

 

Proud to be a Super User!!
Message 10 of 16
1,577 Views
0
MHTANK
Helper III
Helper III
In response to Khushidesai0109

‎03-20-2025 04:50 AM

not error. But not find desired output

MHTANK_0-1742471479343.png

Here Custom=

MHTANK_0-1742471600408.png

 

Message 11 of 16
1,572 Views
0
Khushidesai0109
Super User
Super User
In response to MHTANK

‎03-20-2025 04:53 AM

Umm... Okayyyy

Please Try this


Prev_Value =
VAR CurrentYear = SELECTEDVALUE('YourTable'[Year])
VAR CurrentMonth = SELECTEDVALUE('YourTable'[Month_Number])
VAR CurrentCustom = SELECTEDVALUE('YourTable'[Custom]) -- Consider "Custom" as well

RETURN
CALCULATE(
[Avg_Value],
FILTER(
ALLSELECTED('YourTable'),
('YourTable'[Year] = CurrentYear && 'YourTable'[Month_Number] = CurrentMonth && 'YourTable'[Custom] < CurrentCustom) ||
('YourTable'[Year] = CurrentYear && 'YourTable'[Month_Number] < CurrentMonth) ||
('YourTable'[Year] < CurrentYear)
),
LASTNONBLANK('YourTable'[Custom], [Avg_Value])
)

Proud to be a Super User!!
Message 12 of 16
1,569 Views
MHTANK
Helper III
Helper III
In response to Khushidesai0109

‎03-20-2025 05:00 AM

I used same already, but didn't get

Message 13 of 16
1,561 Views
0
Khushidesai0109
Super User
Super User
In response to MHTANK

‎03-20-2025 05:10 AM

Prev_Value =
VAR CurrentYear = SELECTEDVALUE('YourTable'[Year])
VAR CurrentMonth = SELECTEDVALUE('YourTable'[Month_Number])
VAR CurrentCustom = SELECTEDVALUE('YourTable'[Custom])

RETURN
CALCULATE(
[Avg_Value],
TOPN(
1,
FILTER(
ALLSELECTED('YourTable'),
('YourTable'[Year] = CurrentYear && 'YourTable'[Month_Number] = CurrentMonth && 'YourTable'[Custom] < CurrentCustom) ||
('YourTable'[Year] = CurrentYear && 'YourTable'[Month_Number] < CurrentMonth) ||
('YourTable'[Year] < CurrentYear)
),
'YourTable'[Year], DESC,
'YourTable'[Month_Number], DESC,
'YourTable'[Custom], DESC
)
)

Proud to be a Super User!!
Message 14 of 16
1,548 Views
MHTANK
Helper III
Helper III
In response to Khushidesai0109

‎03-20-2025 09:11 PM

Ya,

It's working very well

Thank you so much👍👍👍

Message 15 of 16
1,528 Views
Khushidesai0109
Super User
Super User
In response to MHTANK

‎03-20-2025 09:14 PM

Keep Doing DAX!!

Kuddos are Appreciated

Proud to be a Super User!!
Message 16 of 16
1,524 Views
0

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