Parser:
VB Script

Expression:
PopulationDensity = density

Code Block:
Dim density
If [POP90_SQMI] < 100 Then
density = "low"

elseif [POP90_SQMI] < 300 Then
density = "medium"

else
density = "high"
end if


dim a as string
if [OB91] < 770.68 then a = "P" else a = "N"