We’ve now enabled users to use custom formulas that include cross-sectional functions (especially the Aggregate function) in screens, ranking systems, simulations, and aggregate series. Formerly, many uses of these functions produced a “map is 0” error; now that difficulty should be encountered only in rare cases.
For example, let’s say you had the following custom formula:
$26WSector = Aggregate (“Pr26W%Chg”, #Sector)
If you put that in a screen with the rule
FRank (“$26WSector”) > 95
you would have gotten a “map is 0” error. Now it produces the desired result.