help on sameperiodelast year

[PowerBIBeginer]

Hi All,

I've one Dax which gives me no of volume and have derived with help of Dax. Now problem is, I've 2024 year-month column, i also derived last year 2023 year-month column. infact I've volume for current year and 2023 as well by creating 2 dax.. but dont know how to get that values against every month.. for e.g. below is the scenario.

Now I dont understand how I can get volume 2023 values next to 150, 250 & 350 i.e. 100,200,300 and then I want new colume after volume 2023 "Difference" so minus of 150-100 value need in that column..

current year	previous year	volume 2024	volume 2023
	Jan-2023	-	100
	Feb-2023	-	200
	Mar-2023	-	300
Jan-2024	Jan-2023	150	-
Feb-2024	Feb-2023	250	-
Mar-2024	Mar-2023	350	-

Can any one please guide here..

[Jihwan_Kim]

Hi,

I am not sure how your semantic model looks like, but I tried to create a sample pbix file like below.

Please check the below picture and the attached pbix file.

Volume measure: = 
SUM( volume_fact[volume] )

Previous year volume measure: = 
CALCULATE (
    SUM ( volume_fact[volume] ),
    SAMEPERIODLASTYEAR ( calendar_dimension[Date] )
)

Difference measure: = 
VAR _current = [Volume measure:]
VAR _previous = [Previous year volume measure:]
VAR _condition =
    _current <> BLANK ()
        && _previous <> BLANK ()
        && HASONEVALUE ( calendar_dimension[Month-Year] )
RETURN
    IF ( _condition, _current - _previous )

[PowerBIBeginer]

Hi Jihwan_Kim, I used now date table field date column and I got the values, but as per SAMEPeriodelastyear dax, against Jan 2024 its not showing me Jan 2023 value.

belwo is the snip

[Jihwan_Kim]

Hi,

Please share your sample pbix file's link, and then I can try to look into it.

Thank you.

[PowerBIBeginer]

this is the main table from where i pulll volume (i.e.output column)- 

in example I purposefully change names.. I cant share pbi file since in transform data more tables are connected to main table (main table my naming conv is tblname)

date table

model view

and here's the dax

[Ashish_Mathur]

Hi,

In the Calendar Table, create calculated column formulas for Year, Month name and Month number.  Sort the Month name column by the Month number.  To your visual, drag Year and Month name from the Calendar Table.

[Ashish_Mathur]

Hi,

In the Calendar Table, create calculated column formulas for Year, Month name and Month number.  Sort the Month name column by the Month number.  To your visual, drag Year and Month name from the Calendar Table.

[PowerBIBeginer]

Hi Jihwan_Kim.. Appriciate your effort for understanding mu issue exactly well and try to plot across very nicely. I would like to hightlight here something that, Volume Measure you've taken simply sum of one column, even I do that but using one filter condition in that.

for e.g.

volume = calculate(sum(tblname[volume]), tblname[onecolumn]="VC")

and hence I designed Previous year Volume like below but I got blanks..

Previuos year volume = CALCULATE(
                        SUM(tblname[Volume]),
                        tblname[onecolumn]="VC",
                        SAMEPERIODLASTYEAR(tblname[date]))

[Ashish_Mathur]

Hi,

You have not created a calendar Table, as suggested by Jihwan.  Study his solution carefully.

[PowerBIBeginer]

Hello Ashish Sir, please refer post no 6 in which I post that I've now used date table and date field even and I got the values but against 2024 2023 value is not appearing

[PowerBIBeginer]

Thank you so much for your reply and valuable time share for me. Let me try this and will update you on the same..