topic Re: How reference row context in addcolumn in DAX Commands and Tips

How reference row context in addcolumn

meiwah — Tue, 30 May 2023 09:48:27 GMT

I've a table as below which contains the CaseID of a case, the division of a case and the predicted division of a case. This predicted value is computed by calling a ML model.

CaseID	Division	Division Prediction
12345	A	A
12346	A	B
12347	B	B
12348	B	C
12349	C	C
12350	C	C
12351	C	A

I would like to compute a table to summarise the results. I've tried to use ADDCOLUMN but can't get it right. Anyone, pls help to provide the correct dax syntax. Thanks! 🙂

Division	No Cases	No Predictions
A	2	2
B	2	2
C	3	3

Re: How reference row context in addcolumn

tamerj1 — Tue, 30 May 2023 10:51:04 GMT

Hi meiwah

please try

NeawTable =
SUMMARIZE (
'Table',
'Table'[Division],
"No Cases", COUNTROWS ( 'Table' ),
"No Predictions", DISTINCTCOUNT ( 'Table'[Division Prediction] )
)

Re: How reference row context in addcolumn

johnt75 — Tue, 30 May 2023 10:54:33 GMT

I would create a dimension table for your divisions, simply DISTINCT('Table'[Division]), create an active relationship from this to the division column in your fact table and create an inactive relationship from it to your predicted division column. You could then create measures like

No Cases = COUNTROWS( 'Table' ) No Predicted Cases = CALCULATE( COUNTROWS('Table'), USERELATIONSHIP( 'Table'[Predicted Division], Division[Division]) )

Re: How reference row context in addcolumn

devanshi — Tue, 30 May 2023 11:21:04 GMT

divpredic =
CALCULATE(COUNTROWS('Tablename'),DISTINCT(Division),DISTINCT(Prediction))

Re: How reference row context in addcolumn

meiwah — Wed, 31 May 2023 02:19:05 GMT

Thanks Devanshi! But the measure didn't give the right output 🙂

Re: How reference row context in addcolumn

meiwah — Wed, 31 May 2023 02:19:21 GMT

Thanks Tamerj1! But the measure didn't give the right output 🙂

Re: How reference row context in addcolumn

meiwah — Wed, 31 May 2023 02:29:24 GMT

Thank you for all help! I've managed to find the solution.

ADDCOLUMNS(
values(Table[Division]),
"No Cases", CALCULATE(countrows(Table)),
"No Predictions", CALCULATE(COUNTROWS(Table), Table[Division Prediction]=earlier([Division]), All(Table[Division]))
)

I have used the first column in AddColumns as the table I intend to loop through, which is Division.

Then use Calculate to do a context transition, bringing Table[Division] the row context into the filter context. Hence, "No Cases" will have the correct figure.

Then use Earlier to reference the filter context from outside of Calculate, to use it on Table[Division Prediction]. Remove the filter on Table[Division]