Rules on text values.


Can we write an expression in rules on Optimize to compare text values?
For example, I want to check if how many customers are belonging to a particular region like “XYZ” or may be I want to compare if the value for a particular attribute is ‘I’ or ‘N’.

How do I go about it?

When we are writing an expression, there is an option “Reading Text” in Value pull down? What does this signify?