http://www.miningmx.com/financial_to...indicators.htm
http://www.fin24.co.za/register/help.../charthelp.asp
"Trend Deviation (TRD): A moving average of volume is divided by another, and a smoothed rate of change."
Ha... Ha... Ha... Ha... Ha... Ha... Ha... Ha... Ha... Ha... Ha...
Look once again on chart:
TRD = price close - simple moving averange
Raff
P.S. trd(i,n)=close(i)/simpleAvg(i,n)