Using a variable in Count() for a reference line

[WonderMan]

Hi, 

I want to show a reference line and this is the expression. Somehow it's not working! It works though when I use a field name and not a variable?

Count({$<Variable1={'1'}>}distinct (field1))

Any ideas why it's not working?

Thks 

[tresB · Accepted solution]

In set analysis - modifiers are expected to be a field name. If your variable evaluation doesn't produce a valid field name - it wouldn't work. You can try something like:

Count(Distinct If(Variable=1, field1))   

[marcus_sommer]

The set analysis expects there a native field - if your variable returns one it would work. Quite probably it's not a field else an independent variable and here you need a different approach, for example like:

if($(var) = 'Condition', count(distinct field))

If the variable contains just a boolean you could also use:

count(distinct field) * $(var)

- Marcus

[WonderMan]

Thank you so much! it worked