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sossie07
New Member

newbie date table question with "Growing Season" column

Hi all,

 

New to Power BI. I'm trying to chart Growing Degree Days (which is a temperature/weather related thing), by crop growing season.

 

I'm in the the southern hemisphere, so our growing season is September - April. I would like to have a "Season" colum in the date table. And as an example Season20-21 would indicate any date between 1 September 2020-30 April 2021.

 

I've read a bit about doing date tables in DAX vs M or others, I think I'm happy to do this in DAX.

 

I have found plenty of examples using financial periods, but not sure how to best to go about doing this based on the above.

 

Any ideas or staring pointers appreciated.

 

thanks

2 REPLIES 2
amitchandak
Super User
Super User

@sossie07 , In your date table create a new column like

 

season =

var _year = Switch(True(), month([date]) >=9 ,year([Date]) ,

month([date]) <=4 ,year([Date]) -1 )

return

 if(month([date]) >=9 && month([date]) <=4,"Switch " & _year & "-" & (_year +1) , blank())

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Thanks Amitchandak,

I couldn't actually get your solution to work, but it got me started.

I ended up with this:

season1 = SWITCH(TRUE(),MONTH('Date'[Date]) >= 9, "Summer" & CONVERT(YEAR('Date'[Date]),STRING) & "-" & CONVERT(YEAR('Date'[Date])+1,STRING),MONTH('Date'[Date]) <= 4, "Summer" & CONVERT(YEAR('Date'[Date])-1,STRING) & "-" & CONVERT(YEAR('Date'[Date]),STRING), BLANK())

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