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Hi,
I wonder if any one can help.
I pretty new to powerBI and Dax and I am struggling to normalsie a variable using the Feature Scaling Method. I am trying the below but it is bring up the following error message, even though all instances of the column are agregated
A single value for column 'Cancellation Rate Indexed' in table 'Agent Lookup' cannot be determined. This can happen when a measure formula refers to a column that contains many values without specifying an aggregation such as min, max, count, or sum to get a single result.
Feature Scaling for Cancellation Rate =
(SUM('Agent Lookup'[Cancellation Rate Indexed])-MIN('Agent Lookup'[Cancellation Rate Indexed],ALL('Agent Lookup')))
/
(MAX('Agent Lookup'[Cancellation Rate Indexed],ALL('Agent Lookup'))-MIN('Agent Lookup'[Cancellation Rate Indexed],ALL('Agent Lookup')))
Thanks
Solved! Go to Solution.
HI @Polly,
Based on your formula. I think you want to use current value to deal with max/min value from current table, right?
If this is a case, you should use calculate or minx/maxx function to apply the filter for this formula.
Result =
DIVIDE (
SUM ( 'Table'[Amount] ) - MINX ( ALL ( 'Table' ), 'Table'[Amount] ),
MAXX ( ALL ( 'Table' ), 'Table'[Amount] )
- MINX ( ALL ( 'Table' ), 'Table'[Amount] )
)
Regards,
Xiaoxin Sheng
HI @Polly,
Based on your formula. I think you want to use current value to deal with max/min value from current table, right?
If this is a case, you should use calculate or minx/maxx function to apply the filter for this formula.
Result =
DIVIDE (
SUM ( 'Table'[Amount] ) - MINX ( ALL ( 'Table' ), 'Table'[Amount] ),
MAXX ( ALL ( 'Table' ), 'Table'[Amount] )
- MINX ( ALL ( 'Table' ), 'Table'[Amount] )
)
Regards,
Xiaoxin Sheng
Thanks!
Thanks!
Hey,
on 1st look you should define your measure like this
your measure = ( SUM('Agent Lookup'[Cancellation Rate Indexed])- CALCULATE( MIN('Agent Lookup'[Cancellation Rate Indexed]) ,ALL('Agent Lookup') ) ) / ( CALCULATE( MAX('Agent Lookup'[Cancellation Rate Indexed]) ,ALL('Agent Lookup') ) - CALCULATE( MIN('Agent Lookup'[Cancellation Rate Indexed]) ,ALL('Agent Lookup') ) )
Basically you also can store the MIN and MAX values to a variable and then use these variables in the expression, this not just improve readibility but also improve performance
Hope this helps
Regards
Tom
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