Previous month dynamic column

[Anonymous]

Hi,

I have included a picture of the table below that I'm working with. Essentialy what I want is a Column that says "TRUE" when it is the previous month dynamically and "FALSE" when it isnt. I can do this through Power Query M, but. for my specific case when the month is January as it is now I want the previous month to be "TRUE" for December. Ignore the date column itself as that doesnt actually matter in this case.Would anyone know how to achieve this dynmaically through DAX?

[ryan_mayu · Accepted solution]

@Anonymous 

is this what you want?

Column = 
VAR monthnumber=SWITCH('Table'[Month],"January",1,"February",2,"March",3,"April",4,"May",5,"June",6,"July",7,"August",8,"September",9,"October",10,"November",11,"December",12)
return if(month(EOMONTH(today(),-1))=monthnumber,TRUE())

[Anonymous]

HI Ryan,

Thank you for this, it has worked, is it possible to do the same with the quarter. so to dynamically get the previous quarter in the same way?

Thanks

[ryan_mayu]

@Anonymous 

is this the logic that you want for quarter?

 

if it is, you can try this

Quarter = 
VAR quarternumber=SWITCH('Table'[Month],"January",1,"February",1,"March",1,"April",2,"May",2,"June",2,"July",3,"August",3,"September",3,"October",4,"November",4,"December",4)
VAR currentquarter=CEILING(month(today()),3)/3
return if(currentquarter=1,if(quarternumber=4,"Previous Month",quarternumber&""),if(currentquarter=2,if(quarternumber=1,"Previous Month",quarternumber-1&""),if(currentquarter=3,if(quarternumber=2,"previous Month",if(quarternumber=1,quarternumber&"",quarternumber-1&"")),if(currentquarter=4,if(quarternumber=3,"Prevous month",if(quarternumber=4,quarternumber-1&"",quarternumber&""))))))

[amitchandak]

@Anonymous , You can have logic like

Month Type = Switch( True(),
eomonth([Date],0) = eomonth(Today(),-1),true(),
False()
)

or

Month Type = Switch( True(),
eomonth([Date],0) = eomonth(Today(),-1),"Last Month" ,
eomonth([Date],0)= eomonth(Today(),0),"This Month" ,
Format([Date],"MMM-YYYY")
)

[Anonymous]

Thanks for the reply, the above response worked for me, would you know to to achieve the same but for the quarter. so to always get the previous quarter but dynamically?

Thanks