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lizzy
Helper I
Helper I

Most recent previous date

HI I have a table that looks something like this

Person IDDate
A12/31/2019
A12/1/2019
A10/2/2019
A6/1/2019
B12/10/2019
B10/1/2019
C6/12/2019
C3/1/2019
C2/19/2019

 

For each row, I want to calculate what the previous date was, for that person.

For example:

Person IDDatePrevious
A12/31/201912/1/2019
A12/1/201910/2/2019
A10/2/20196/1/2019
A6/1/2019 
B12/10/201910/1/2019
B10/1/2019 
C6/12/20193/1/2019
C3/1/20192/19/2019
C2/19/2019 

How can I do this?

1 ACCEPTED SOLUTION
Adamtall
Resolver III
Resolver III

Previous date =
var date_ = 'Table'[Date]
var ID_ = 'Table'[Person ID]
return
CALCULATE(MAX('Table'[Date]);FILTER(ALL ('Table') ; 'Table'[Person ID] = ID_ && 'Table'[Date] < date_))

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3 REPLIES 3
amitchandak
Super User
Super User

In case you want a column

new column = maxx(filter(table, table[personID]=earlier(table[personID]) && table[Date]<earlier(table[Date])),table[Date])

 

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Adamtall
Resolver III
Resolver III

Previous date =
var date_ = 'Table'[Date]
var ID_ = 'Table'[Person ID]
return
CALCULATE(MAX('Table'[Date]);FILTER(ALL ('Table') ; 'Table'[Person ID] = ID_ && 'Table'[Date] < date_))
littlemojopuppy
Community Champion
Community Champion

Hi!  Take a look at this

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