Forum Discussion
How to create a calculated column with same value in every row with a calculated value
Hi,
I am trying to create a calculated column using DAX Calculate function.
I want all my rows to have the same value that was calculated using CALCULATE function.
I want all rows of thisFiscalWeek column to be populated with the outcome of CALCULATE function.
When I use this code it is only populating one row. I want that value to be in every row.
Thank you for you help in advance
Hi Anonymous
DAX works a little differently in Calculated Columns because of Row Context. When using DAX in a measure, you have to be more aware of it's Filter Context. Row Context allows you to reference a 'naked' column in a row without an aggregating funtion, because DAX knows that row and column you mean.
When used in a Calculated Column the Calculate function has an interesting behaviour, it 'converts' the value of each row into a Filter Context for the calculation. In your case, for the first row this creates a filter context of rDate = -2, dayOfWeek = 0, ...etc. So to get the same value for every row, you need to first clear the relevant filter context in the Calculate function.
Something like:
thisFiscalWeek = CALCULATE(MAX('Date Hierarchy'[fiscalWeek]), ALL('Date Hierarchy'), 'Date Hierarchy'[rDate] = 0)
Generally (depending on your use of the column) it is usually better to use a Measure instead of the Calculated Column.
These references might be useful:
4 Replies
Hi Anonymous
DAX works a little differently in Calculated Columns because of Row Context. When using DAX in a measure, you have to be more aware of it's Filter Context. Row Context allows you to reference a 'naked' column in a row without an aggregating funtion, because DAX knows that row and column you mean.
When used in a Calculated Column the Calculate function has an interesting behaviour, it 'converts' the value of each row into a Filter Context for the calculation. In your case, for the first row this creates a filter context of rDate = -2, dayOfWeek = 0, ...etc. So to get the same value for every row, you need to first clear the relevant filter context in the Calculate function.
Something like:
thisFiscalWeek = CALCULATE(MAX('Date Hierarchy'[fiscalWeek]), ALL('Date Hierarchy'), 'Date Hierarchy'[rDate] = 0)
Generally (depending on your use of the column) it is usually better to use a Measure instead of the Calculated Column.
These references might be useful:
Hi, Anonymous
In your calculated column, only one 4 is displayed, and the other ones are blank. The reason is: rdate=0 has only one item. You can improve this DAX expression using the IF function. I captured some of the data in your screenshot:
thisFiscalWeek = IF('Date Hierarchy'[rDate]=0,CALCULATE(MAX('Date Hierarchy'[fiscalWeek])), CALCULATE(MAX('Date Hierarchy'[fiscalWeek]),'Date Hierarchy'[rDate]))The results are as follows:
If the above DAX expression helps you, that would be great.
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If it does not help, please provide more details with your desired output and pbix file without privacy information (or some sample data) .
Best Regards
Jianpeng Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Thank you for your help! I think I made a mistake to explain my goal initially. Below table is what I am trying to acheive. When rDate is 0 (which means Date is today) I want every row of thisFiscal week column to be populated with the same value - with the corresponding fiscalWeek value when rDate is 0.
In my case below it is fiscalWeek = 4, so thisFiscalWeek column should have value 4 in every cell and dynamically change when Date changes. For example when the Date is Feb 26, 2024 thisFiscalWeek column should have 5 in all rows.Date rDate weekOfYear rWeek fiscalWeek fiscalWeekName thisFiscalWeek 1-Feb-24 -21 5 -3 1 W01 4 2-Feb-24 -20 5 -3 1 W01 4 3-Feb-24 -19 5 -3 1 W01 4 4-Feb-24 -18 5 -3 1 W01 4 5-Feb-24 -17 6 -2 2 W02 4 6-Feb-24 -16 6 -2 2 W02 4 7-Feb-24 -15 6 -2 2 W02 4 8-Feb-24 -14 6 -2 2 W02 4 9-Feb-24 -13 6 -2 2 W02 4 10-Feb-24 -12 6 -2 2 W02 4 11-Feb-24 -11 6 -2 2 W02 4 12-Feb-24 -10 7 -1 3 W03 4 13-Feb-24 -9 7 -1 3 W03 4 14-Feb-24 -8 7 -1 3 W03 4 15-Feb-24 -7 7 -1 3 W03 4 16-Feb-24 -6 7 -1 3 W03 4 17-Feb-24 -5 7 -1 3 W03 4 18-Feb-24 -4 7 -1 3 W03 4 19-Feb-24 -3 8 0 4 W04 4 20-Feb-24 -2 8 0 4 W04 4 21-Feb-24 -1 8 0 4 W04 4 22-Feb-24 0 8 0 4 W04 4 23-Feb-24 1 8 0 4 W04 4 24-Feb-24 2 8 0 4 W04 4 25-Feb-24 3 8 0 4 W04 4 26-Feb-24 4 9 1 5 W05 4 27-Feb-24 5 9 1 5 W05 4 28-Feb-24 6 9 1 5 W05 4 29-Feb-24 7 9 1 5 W05 4
Thank you again