how to rank between two scalar

[dombarg]

hello.how can i rank a measure only between one to four in only one DAX?

In other word,i need to rank only top 4 measure.for this purpose,first i've created a dax:

rankx =
CALCULATE (
    RANKX (
        ALLSELECTED ( '1-Grouping'[city ] ),
        [Selected Measure - TOP],
        ,
        1,
        DENSE
    ),
    '3-BS'[new year] = "2017"
)

and then following Dax to return only top rankx:

top rank = 

if(
[rankx] <4 , [rankx] , blank()
)

but i want to summarize them into one DAX and hence from the beginning rank only one to four of them.

[v-chuncz-msft · Accepted solution]

@dombarg,

You may learn to use Variables in DAX.

https://community.powerbi.com/t5/Desktop/DAX-Grouping-tagging/m-p/189391#M83354