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thmonte
Helper IV
Helper IV

Use value from other row in dataset based on condition

‎01-23-2018 05:01 PM

I am trying to do some advanced DAX/PowerQuery equations and I am coming up short and looking for some help.

 

I have a dataset like the below and the use case is to get an average amount of time spent for each 'code'.  To come up with that I need to take each true value timestamp and comare it against the next false vale timestamp.  Ideally I'd like to store the DATEDIFF in a new column on each TRUE value.  Does anyone know how I can achieve this?  Keep in mind, each equipment ID can have many true/false values.

 

Thank you in advance!

 

 

equipIDdowncodetimestamp
25DC-001FALSE 1/5/2018 8:00AM
25DC-001TRUEDN031/4/2018 8:00AM
25DC-001TRUEDN021/3/2018 8:00AM
25DC-001TRUEDN011/2/2018 8:00AM
25DC-001FALSE 1/1/2018 8:00AM
25DC-002FALSE 1/6/2018 8:00AM
25DC-002TRUEDN011/3/2018 8:00AM
25DC-002FALSE 1/1/2018 8:00AM

 

 

Example: Output

 

 

equipIDdowncodetimestampdateDiff
25DC-001FALSE 1/5/2018 8:00AM 
25DC-001TRUEDN031/4/2018 8:00AM1440
25DC-001TRUEDN021/3/2018 8:00AM2880
25DC-001TRUEDN011/2/2018 8:00AM4320
25DC-001FALSE 1/1/2018 8:00AM 
25DC-002FALSE 1/6/2018 8:00AM 
25DC-002TRUEDN011/3/2018 8:00AM4320
25DC-002FALSE 1/1/2018 8:00AM 
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Phil_Seamark
Employee
Employee
In response to thmonte

‎01-23-2018 06:16 PM

Hi @thmonte

 

Sorry, I missed that.  I have ammeded my calc

 

Column = 
VAR x = MAXX(
            FILTER(
                'Table1',
                'Table1'[equipID] = EARLIER('Table1'[equipID]) 
                && 'Table1'[timestamp] > EARLIER('Table1'[timestamp])
                && 'Table1'[down] = FALSE()
                ),
                'Table1'[timestamp])

VAR y = if(ISBLANK(x),NOW(),x)

RETURN IF( 'Table1'[code]<>"",
        DATEDIFF('Table1'[timestamp],y,MINUTE))
To learn more about DAX visit : aka.ms/practicalDAX

Proud to be a Datanaut!

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