DATEDIFF between Rows

[Magomed]

Hello,  

I have a question about how to calculate datediff between rows. I have dataset like below: 

Trackingtocken	createdon
1	01.08.2018 08:00
1	01.08.2018 08:01
1	01.08.2018 08:12
1	01.08.2018 08:14
1	01.08.2018 08:15
1	01.08.2018 10:31

What I need is a calculated column where datediff (MIN or HOUR) between each row is calculated (from the very beginning).

Something like the outcome below (based on my example): 

Datediff

0 1 11 2 1 ....

Could you please help me with that?

Regards

Magomed.

[v-lili6-msft · Accepted solution]

HI, @Magomed

After my test, you could do these follow my steps as below:

Step1:

Add a group rank column 

group rank = RANKX(FILTER(Table1,Table1[Trackingtocken]=EARLIER(Table1[Trackingtocken])),Table1[createdon],,ASC)

Step2:

Use EARLIER Function add a datediff column

Datediff = DATEDIFF(CALCULATE(MAX(Table1[createdon]),FILTER(Table1,Table1[Trackingtocken]=EARLIER(Table1[Trackingtocken])&&Table1[group rank]=EARLIER(Table1[group rank])-1)),Table1[createdon],MINUTE)

Result:

here is pbix, please try it.

https://www.dropbox.com/s/0v0qnnue9j1hvyx/DATEDIFF%20between%20Rows.pbix?dl=0

Best Regards,

Lin

[Magomed]

Hi Lin, 

Thank you very much, it worked for me :). 

Regards

Magomed.

[Greg_Deckler]

See my article on Mean Time Before Failure (MTBF) which uses EARLIER: http://community.powerbi.com/t5/Community-Blog/Mean-Time-Between-Failure-MTBF-and-Power-BI/ba-p/3395...

[Magomed]

Hi Greg, 

Thanks a lot! I will test your approach. 

Regards

Magomed.