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in my attemps to make a trend following systems I made this little piece of code pure for visualisation. Put is in the Ind. Builder and click somewhere in the chart with the mouse.
rgds, Ed
/*
trend channel development
Edward Pottasch, nov 2004
*/
per = 10;
mm= (H + L) / 2;
x = Cum(1);
lastx = LastValue( x );
selv = SelectedValue(x);
aaa = LinRegIntercept( mm, per);
bbb = LinRegSlope( mm, per );
daa = SelectedValue(ValueWhen( x, aaa, 1));
dbb = SelectedValue(ValueWhen( x, bbb, 1));
xx = IIF(x > selv - per AND x <= selv, x - (selv - per),null);
yy = daa + dbb * xx;
detrend = mm - yy;
wd = SelectedValue(HHV(abs(detrend),per));
Plot(yy, "LinReg", colorBlue );
Plot(yy + wd, "Upper Boundary", colorRed );
Plot(yy - wd, "Lower Boundary", colorBrightGreen );
Plot(C,"",colorwhite,64);
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