can anybody help me ?
originally the question was build the rating system , so if the rating out put comes to 1.5, calulated result is star01 and star 02., how can i do that ?
Gee, 4 minutes after posting you're asking why no one answered?
Define a calculation field with an expression like this:
Choose ( rating ; "" ; Star01 ; star02 ; Star03 ; Star04 ; Star05 )
Select "container" as the field's return type.
The "star" fields should be global container fields that you load with the desired images for each rating value. (Not sure how you intend to use 3 container fields with a rating scale of 1..5. So I am assuming you'd want a different image for each rating value.)