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axk180022's avatar
axk180022
Icon for Helper II rankHelper II
5 years ago
Solved

Calculate Difference between 2 rows based on another column filter

  I would want to find the difference in the GenHours for each serialid. Currently this is how my table looks on power BI. I have filtered the latest and 2nd latest date for each serialid.   ...
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  • Ashish_Mathur's avatar
    Ashish_Mathur
    5 years ago

    Hi,

    This calculated column formula works

    =if(CALCULATE(MAX(Data[Dates]),FILTER(Data,Data[serialid]=EARLIER(Data[serialid])))=Data[Dates],ABS(Data[GenHours]-LOOKUPVALUE(Data[GenHours],Data[Dates],CALCULATE(max(Data[Dates]),FILTER(Data,Data[serialid]=EARLIER(Data[serialid])&&Data[Dates]<EARLIER(Data[Dates]))),Data[serialid],Data[serialid])),BLANK())

    Hope this helps.

DarrelDonatto's avatar
DarrelDonatto
Frequent Visitor
4 years ago

I am trying to do something similar, but different.  

 

For a given call (inci_id) AND a given unit (unitcode), I am trying to calculate the time difference between dispatch events (transtype).  The problem is that these values are contained within different rows and not consecutive.  I have attached a sample of my dataset.

closecodeconsoledescriptinci_idradorevtimeinsecstimestamptranstypeunitcodeuserid
 CONSOLE2Dispatched2019365004R159812/31/2019 0:26DR97BMCGARY
 CONSOLE4En-Route2019365004R166612/31/2019 0:27ER97ASABATINO
 CONSOLE2Dispatched2019365007R205012/31/2019 0:34DLD97BMCGARY
 CONSOLE2Arrived2019365004R209212/31/2019 0:34AR97BMCGARY
 CONSOLE2En-Route2019365007R215912/31/2019 0:35ELD97BMCGARY
 CONSOLE2Arrived2019365007R237812/31/2019 0:39ALD97BMCGARY
 CONSOLE2Transport2019365004R287712/31/2019 0:47TR97BMCGARY
FIRCONSOLE2Cleared2019365007R302512/31/2019 0:50CLD97BMCGARY
 CONSOLE2At Hospital2019365004R355012/31/2019 0:59HR97BMCGARY
 CONSOLE2Dispatched2019365017R387012/31/2019 1:04DR99BMCGARY
 CONSOLE2En-Route2019365017R394012/31/2019 1:05ER99BMCGARY
 CONSOLE2Arrived2019365017R433612/31/2019 1:12AR99BMCGARY
FIRCONSOLE2Cleared2019365004R461112/31/2019 1:16CR97BMCGARY

 

Here is the file: https://drive.google.com/file/d/1KNGslhWB4YsFuRbjGOesiLmfegxLOqEE/view?usp=sharing

For example - for inci_id 2019365004 and unit R97 - I want to know the time difference between Dispatched and Arrived.

 

Can you suggest a solution?

 

Thanks in advance

Darrel Donatto

Fire Chief, Palm Beach Fire Rescue

Ashish_Mathur's avatar
Ashish_Mathur
Icon for Super User rankSuper User
4 years ago

Hi,

Show the expected result very clearly.