SID Name	Description	Rating
	559 MACDDEMA	MACD like technical analysis indicator using Double Exponential Moving Average (DEMA) instead of EMA	Not Rated

The logic for this technical analysis indicator:

#MACD like technical analysis indicator using Double Exponential Moving 
#Average (DEMA) instead of EMA
my ($period1,$period2,$smooth)=@_;
#Validate the periods
ValidatePeriods($period1,$period2,$smooth);
#create the columns...
my $macdline = DEMA(Close,$period1)-DEMA(Close,$period2);
my $macds    = DEMA($macdline,$smooth);
my $macdhist = $macdline-$macds;
#rename the columns
my $name="MACDDEMA($period1,$period2,$smooth)";
SetColumnName($macdline , "$name:line");
SetColumnName($macds    , "$name:signal");
SetColumnName($macdhist , "$name:hist");
#create the indicator with the columns
return ($macdline,$macds,$macdhist);