Fill column with last value, only if condition is met.

[Syndicate_Admin]

Hello everyone, I hope someone can arientar me on the following:

I have a dataset that looks like this,

Week	Sales_Store1	Sales_Store2	Sales_Store3
19	12		4
20		34	11
21
22
22	10	4	1

As you can tell in almost every week there is at least one empty field; This does not affect analysis at all.

However, in week 21 and 22 the three columns are empty, this is where I have the problem. I would like the rows that meet the condition of having the three empty columns, to be filled with the values of the previous week. This 3 new final columns.

The expected result is as follows:

Week	Sales_Store1	Sales_Store2	Sales_Store3	Sales_Store1	Sales_Store2	Sales_Store3
19	12		4	12		4
20		34	11		34	11
21					34	11
22					34	11
22	10	4	1	10	4	1

Another acceptable outcome is as follows:

Week	Sales_Store1	Sales_Store2	Sales_Store3
19	12		4
20		34	11
21		34	11
22		34	11
22	10	4	1

I hope someone can guide me on the solution to follow. Best regards.

[v-jingzhang · Accepted solution]

Hi @Anonymous 

You can add these calculated columns to your table. The last three columns are similar. You just need to modify the sales store column it references. 

Flag = IF(ISBLANK('Table (2)'[Sales_Store1]) && ISBLANK('Table (2)'[Sales_Store2]) && ISBLANK('Table (2)'[Sales_Store3]), 0, 1)

NewSales_Store1 = IF('Table (2)'[Flag] = 1, 'Table (2)'[Sales_Store1], 
var _previousWeek = MAXX(FILTER('Table (2)','Table (2)'[Week] < EARLIER('Table (2)'[Week]) && 'Table (2)'[Flag] = 1),'Table (2)'[Week])
var _previousSales = MAXX(FILTER('Table (2)','Table (2)'[Week] = _previousWeek), 'Table (2)'[Sales_Store1])
return _previousSales)

NewSales_Store2 = IF('Table (2)'[Flag] = 1, 'Table (2)'[Sales_Store2], 
var _previousWeek = MAXX(FILTER('Table (2)','Table (2)'[Week] < EARLIER('Table (2)'[Week]) && 'Table (2)'[Flag] = 1),'Table (2)'[Week])
var _previousSales = MAXX(FILTER('Table (2)','Table (2)'[Week] = _previousWeek), 'Table (2)'[Sales_Store2])
return _previousSales)

NewSales_Store3 = IF('Table (2)'[Flag] = 1, 'Table (2)'[Sales_Store3], 
var _previousWeek = MAXX(FILTER('Table (2)','Table (2)'[Week] < EARLIER('Table (2)'[Week]) && 'Table (2)'[Flag] = 1),'Table (2)'[Week])
var _previousSales = MAXX(FILTER('Table (2)','Table (2)'[Week] = _previousWeek), 'Table (2)'[Sales_Store3])
return _previousSales)

Best Regards,
Community Support Team _ Jing
If this post helps, please Accept it as Solution to help other members find it.

[Syndicate_Admin]

Thank you very much, that's what I was looking for. It helped me a lot. Best regards.