Set analysis to hide rows

[RobertB07]

I found the following expression in a table:

=if(count({<[Credit/Debit Indicator]={'DBIT'}>} Account)=1, Account)

For what is understand it seems to contain a set analysis to show the Account if it meets the condition. But when i try to recplicate it in the expression editor it says 'OK' but the table says 'invalid dimension. 

=if(count({<[objectClass]={'domain'}>}PwdSettingsFilter)=1, PwdSettingsFilter)

What am i doing wrong? Can set analysis be used to hide row or values from a table?

[tresesco]

If you want to use this expression as dimension, try like:

=Aggr(if(count({<[objectClass]={'domain'}>}PwdSettingsFilter)=1, PwdSettingsFilter) , PwdSettingsFilter)