Re: [amibroker] lower trendline

["Joe Landry" <jelandry@xxxxxxxxxxxxx>]

Nifty46:  Try this one from the library.  It works and may have the elements of what you're looking for in that he picks the

beginning and endpoints of the barcounts similarly to what you're doing.

Hope this helps,

JOE  

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

THIS SECTION DRAWS TD TREND LINES */

percent = 0.01 * 1; /* Adjust this percent as necessary, I use .01 because

FOREX is a 0.0000 number */

firstpointL = 2;

firstpointH = 2;

y0=LastValue(Trough(L,percent,firstpointL));

y1=LastValue(Trough(Ref(L,-1),percent,1));

for( i = 1; i < BarCount AND y0 >= y1; i++ )

{

firstpointL++;

y0=LastValue(Trough(L,percent,firstpointL));

}

x0=BarCount - 1 - LastValue(TroughBars(L,percent,firstpointL));

x1=BarCount - 1 - LastValue(TroughBars(Ref(L,-1),percent,1));

LineL = LineArray( x0, y0, x1, y1, 1 );

/*

Plot(C, "C", colorBlack, styleCandle);

*/

Plot( LineL, " Support Trend line", colorWhite,4 +8 );

　

yt0=LastValue(Peak(H,percent,firstpointH));

yt1=LastValue(Peak(Ref(H,-1),percent,1));

for(i = 1; i < BarCount AND yt0 <= yt1; i++ )

{

firstpointH++;

yt0=LastValue(Peak(H,percent,firstpointH));

}

xt0=BarCount - 1 - LastValue(PeakBars(H,percent,firstpointH));

xt1=BarCount - 1 - LastValue(PeakBars(Ref(H,-1),percent,1));

LineH = LineArray( xt0, yt0, xt1, yt1, 1 );

Plot( LineH, "Resistance Trend line", colorBrown,4 + 8 );

Plot(Close,"Close",colorBlack,styleCandle);

----- Original Message -----

From: nifty46

To: amibroker@xxxxxxxxxxxxxxx

Sent: Saturday, April 11, 2009 5:44 AM

Subject: [amibroker] lower trendline

friends i need to draw trendline,logic is for lowerline start from low of lower close, ignore low of close>open, i try:-

LOWERLINE=ValueWhen(Lowest(Close),Low);

but when i use this in AFL, trendline does not start from low of lower close day of my sad perioud,PLEASE HELP, thax in advanced. nifty46(Dhiraj Sood)

x =Cum(1);
per =Param("PERIOUD",4,1,25,1);

LOWERLINE=ValueWhen(Lowest(Close),Low);

pS =TroughBars( LOWERLINE, per, 1 ) == 0;
//===============SUPPORT TRENDLINE ==============
endt=LastValue(ValueWhen( pS, x, 1 ));
startt=LastValue(ValueWhen( pS, x, 2 ));
endS =LastValue(ValueWhen( pS, LOWERLINE, 1 ) );
startS =LastValue( ValueWhen( pS, LOWERLINE, 2 ));
dtS =endt-startt;
aS = (endS-startS)/dtS;
bS = endS;
trendlineS = aS * ( x -endt ) + bS;
//===============================================

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