IS there a way I can create a new field with a cumulative count of a unique ID?
For example, currently i have created a transaction which groups events together as "trips", however I would like to give each trip a number.
below is an example of what I am trying to acheive:
initially after using the transaction, the events will look like below. Each transaction event will have a unique vehicle ID, duration of trip and distance travelled.
vehID,Duration,Distance
1,30,40
1,20,30
2,30,40
3,20,30
3,40,50
3,50,60
I would like to add a cumulative count to act as a Trip Number.
vehID,Duration,Distance,tripNo
1,30,40,1
1,20,30,2
2,30,40,1
3,20,30,1
3,40,50,2
3,50,60,3
Could anyone advise how I could achieve the above?
Thanks!
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