HI everyone,

I have made a Pie Chart displaying avg(salary)

i have made three buttons 'Avg' , 'Min' , "Max' which set variable 'vSet' as 'Avg' 'Min' & 'Max' accordingly.

i want the expression to b written as vSet(salary) but it throws error i also tried =$(vSet(salary))

how to write it proper way.

any suggestions will b very helpful