count based on measure results

[Anonymous]

Hi 

I need your help in returning the count of instances based on the results of a measure

the first measure i have , counts if there is a rating at any point in time . the ratings are by team and have a start and end date . the rating changes over time 

ratings count = 

var min_date = calculate(lastdate(date_table([date]))

var max_date = calculate(max(date_table([date]))

var result = countrows([rating]), ratings_table[start_date]<=max_date , ratings_table[end_date]>=min_date, removefilters(date_table))

return result

the second measure , compares the result of ratings count to previous quarter 

vs_prvs_qtr =

var prvs_qtr=calculate([ratings_count], previousquarter(date_table[date]))

var diff = ratings_count-prvs_qtr

what i want to get is the total number of instances where diff is equal to -1 or 1 

i can get it to work at a team level , but not a total level.

[lbendlin]

"var min_date = calculate(lastdate(date_table([date]))"

did you mean firstdate() ?

Please provide more context. It is unclear what you mean by instances.  Please provide sample data in usable format (not as a picture) and show the expected outcome.