A secondary cross-sectional function, which requests that the primary function be calculated separately for each group of stocks that share the same economic sector name
Example
Calculates the average 100-bar ROC of all stocks in this economic sector and stores it as "EconROC" for each stock.
Notes
Requires data with ?EconSect names in each stock record.
Norgate provides these automatically -- use Classification to specify which scheme to request at Import time.
For other data sources you would need to provide them via a SymInfofile.