A secondary cross-sectional function, which requests that the primary function be calculated separately for each group of stocks that share the same industry group name
Calculates the average 100-bar ROC for all stocks in this industry group and stores it as "GroupROC" for each stock.
Requires data with ?IndGroup 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 SymInfo file.