I have 2 tables
When I filter on a carrier group it shows their rank out of the list of carrier groups (this is great) but the carrier table then only ranks the carriers by the amount that are there, ex. if there are 3 carriers in a group their intial rankings lets say #5,#40, #50 then turn to 1-3. I would like their inital rankings to stay static. Any ideas?
I think you need to avoid the filtering of the carrier group in the carrier rank. Try this:
Carrier Rank = RANKX ( ALL ( Data[CARRIER_CODE], Data[Carrier Group] ), 'Period Dimmension'[Period Selection], , 0 )
Or in fact, if carrier group filters the carriers, as I guess it does, this should probably suffice:
Carrier Rank = RANKX ( ALL ( Data[Carrier Group] ), 'Period Dimmension'[Period Selection], , 0 )
I think it will be help if you share some sample data for test.