lookup - PowerPivot multiple columns approximate match -



lookup - PowerPivot multiple columns approximate match -

i want find out member_status on date product purchased.

table contains 3 fields: member_name, member_status, change_date (this date fellow member started have status).

table b contains 3 fields: member_name, product_purchased, purchase_date.

both tables have multiple records each fellow member (e.g. fellow member may have had many different statuses on years , fellow member may have purchased many different products on different days) cannot utilize standard powerpivot relationship.

i think need indirect lookup (look purchase_date table b , find closest before matching change_date table fellow member matches in both tables , find right member_status field each record in table b. have not been able figure out formula in powerpivot accomplish this.

any suggestions?

here sample info file: http://www.files.com/shared/5460044b6d805/howtorelatetwotableswithnonuniquerecords.zip

i found great blog on topic @ http://javierguillen.wordpress.com/2012/08/05/approximate-match-with-multiple-criteria-in-dax-part-ii/ , figure out solution. here formula worked me. =calculate( lastnonblank(table2[member_status],1), filter( table2, table2[date]=calculate(lastnonblank(table2[date],1),filter(table2,table2[member_name]=table1[member_name] && table2[date]<=table1[purchase_date]) )&& table2[member_name]=table1[member_name]))

lookup powerpivot dax approximate

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