Metastock formulas for this Parabolic indicator?

["Dan" <w4tq@xxxxxxxxxx>]

The following indicator was posted on the Omega reflector today.  Another
fellow back tested it with good results.  Has anyone worked out the
Metastock equivalent?  There are some features of the following Omega
formulas I'm not familiar with.  Following this is some backtest info.

------------------------------------
"One method of getting around some of the problems of the
Parabolic and yet retaining much of what is good about
the Parabolic was suggested by Andrew Abraham in a recent
issue of TAS&C.

If as termed, "Trend Finder" , is true then this certainly
should provide a very good STOP point in a trade.

A 21 day period for ATR and a multiplier of 3 works out well
on almost ALL time periods of data.  (I use it on 30 minute
bars and daily bars).  What this does with OEX 30 minute data
is unbelievable.

I have called this  LeeX4  in my scheme of things just to note
that it is a bit different than originally proposed.

Clyde Lee
{ *******************************************************************
Study           : Trend Finder (LeeX4)
ast Edit       : 8/7/98
Provided By : Andrew Abraham                   (c) Copyright 1998
Modified By : Clyde Lee (SYTECH/FuturesMagic)  (c) Copyright 1998
********************************************************************
}
Inputs:         ATRMult(NumericSimple),
                ATRLeng(NumericSimple);

Vars:           ATRVal(0),HHigh(H),LLow(L),Position(1),SAR(c);

If ATRLeng<>0 then begin

   if High > HHigh then         HHigh = High;
   if Low  < LLow then  LLow = Low;

   ATRVal = WAverage(TrueRange,ATRLeng);

   if Position = 1 then begin
      if Low  <= SAR and Low[1] <SAR then  Position = -1; {Reverse}
   end
   else begin
      if High >= SAR and High[1]>SAR then  Position = +1; {Reverse}
   end;

   if Position = 1      then begin
      if Position[1] <> 1 then begin
         LLow = Low;
         HHigh = High;
         SAR = HHigh-ATRVal*ATRMult;
      end
      else begin
         SAR = HHigh[1]-ATRVal*ATRMult;
         If SAR[1]>SAR THEN SAR=SAR[1]*.9+SAR*.1;
      end;
   end
   else If Position < 0 then begin
      if  Position[1] <> -1 then begin
         LLow = Low;
         HHigh = High;
         SAR = LLow+ATRVal*ATRMult;
      end
      else begin
         SAR = LLow[1]+ATRVal*ATRMult;
         If SAR[1]<SAR THEN SAR=SAR[1]*.9+SAR*.1;
      end;
   end;
   LeeX4 = SAR*Sign(Position);
End
Else  LeeX4=C;
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Here is some backtest info:

Here's a bonehead system based on the indicator from Clyde Lee
<clydelee@xxxxxxx>


{LEE indicator tester}
inputs: ATFMult(3),
Delay(0),
AvgLeng(21);

Value1=AbsValue(LeeX4(ATFMult,AvgLeng));

if l>value1 then exitlong {or sell} value1 stop;
if l<value1 then buy value1 stop;
{The End}


And here's the exciting results. Sorry the spacing seems messed up.

Trender  SPNEW.TXT-Daily   10/11/84 - 10/14/98

Performance Summary:  All Trades

Total net profit $ 439997.50 Open position P/L $   1550.00
Gross profit    $ 691215.00 Gross loss      $-251217.50

Total # of trades      240 Percent profitable       60%
Number winning trades      144 Number losing trades       96

Largest winning trade $  38552.50 Largest losing trade $ -20395.00
Average winning trade $   4800.10 Average losing trade $  -2616.85
Ratio avg win/avg loss        1.83 Avg trade(win & loss) $1833.32

Max consec. winners       12 Max consec. losers        8
Avg # bars in winners       39 Avg # bars in losers       14

Max intraday drawdown $ -59065.00
Profit factor          2.75 Max # contracts held        7
Account size required $  97469.50 Return on account      451%