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Pink Darvas for Amibroker (AFL)
Rating:
4 / 5 (Votes 5)
Tags:
amibroker, darvas
I’m new to trading (like squeaky-shoes new) so I’m reading as much as I can to get an idea of what it’s all about before blowing investing my hard-earned cash.
I read a book by Nicholas Darvas yesterday and I wondered if there was a script to indicated where the boxes are formed, and sure enough there was. The only problem was that it was giving me a headache because it has an animated background.
I’m not a coder – not even pretending to be – but I found the animated bit at the end of the script and modified it to be a bit more soothing on the eye. It’s pink now, but there are options to add your own color scheme in if you prefer – just replace the (pink) with (turq) or (green) or (red) etc.
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Copy & Paste Friendly
_SECTION_BEGIN("Darvas Box");
SetChartOptions(0,chartShowArrows|chartShowDates);
_N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} Open= %g High= %g Low= %g Close= %g (%.1f%%) Volume= " + WriteVal( V/1, 1.0 ) +
"\n"+"{{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 )) ));
Plot( C, "Close", ParamColor("Color", colorPaleTurquoise ), styleNoTitle | ParamStyle("Style") | GetPriceStyle() );
box1=0;
box2=0;
SetBarsRequired(10000,10000);
procedure fillDarvas(start,end,swap,top, bottom )
{
for ( j = start; j < end; j++)
{
if( box1[j] == swap)
box1[j]= top ;
else
box1[j]= bottom;
if(box2[j] == swap)
box2[j]= bottom ;
else
box2[j]= top;
}
}
BoxArr1 = 0;
BoxArr2 = 0;
StateArray = 0;
DBuy = 0;
DSell = 0;
TopArray = 0;
BotArray = 0;
tick=0;
BoxTop = High[0];
BoxBot = Low[0];
swap=0;
state = 0;
BoxStart = 0;
for (i=0; i<BarCount; i++)
{
if (state==5)
{
TopArray[i]=BoxTop;
BotArray[i]=BoxBot;
if (Low[i]<(BoxBot*(1-tick/100)) || High[i]>(BoxTop*(1+tick/100)))
{
fillDarvas(BoxStart,i,swap,BoxTop,BoxBot);
state = 1;
swap = !swap;
BoxTop = High[i];
BoxStart = i;
}
}
else
{
if (High[i]<BoxTop)
{
if ((state<3) || (Low[i]>BoxBot))
{
state++;
}
else
{
state=3;
}
if (state==3)
BoxBot=Low[i];
}
else
{
state=1;
BoxTop=High[i];
}
}
StateArray[i] = state;
}
fillDarvas(BoxStart,BarCount,swap,BoxTop,BoxBot);
Buy=Cover=H>Ref(box1,-1) AND H>Ref(box2,-1) AND Ref(statearray,-1)==5;
Short=Sell=L<Ref(box1,-1) AND L<Ref(box2,-1) AND Ref(statearray,-1)==5;
//Plot( box1, " RESI " , colorLime, styleLine );
//Plot( box2, " SUPP" , colorOrange, styleLine );
Plot( box1,"\n"+ "RESI " , colorLime, styleDots );
Plot( box2, " SUPP" , colorOrange, styleDots );
GfxSetOverlayMode(1);
GfxSelectFont("Aparajita", Status("pxheight")/10 );
GfxSetTextAlign( 6 );// center alignment
GfxSetTextColor( ColorHSB( 75, 75, 75 ) );
GfxSetBkMode(0); // transparent
//GfxTextOut( Name(), Status("pxwidth")/2, Status("pxheight")/30 );
GfxSelectFont("Aparajita", Status("pxheight")/20 );
//GfxTextOut( IndustryID(1), Status("pxwidth")/2, Status("pxheight")/7.5 );
GfxSelectFont("Aparajita", Status("pxheight")/25 );
// GfxTextOut( FullName(), Status("pxwidth")/2, Status("pxheight")/1.09 );
for( i = 1; i < BarCount; i++ )
z = (GetPerformanceCounter()/100)%256;
// here are the color options
anim=ColorHSB( ( i + z ) % 255, 256, Param("Brightness", 1, 1, 1, 1 ));
black=colorBlack;
grey=colorPaleBlue;
pink=colorPink;
green=colorGreen;
red=colorRed;
yellow=colorYellow;
turq=colorPaleTurquoise;
grey40=colorGrey40;
// and this is the bit you change to set your own preference
SetChartBkColor(pink);
RequestTimedRefresh(1);
_SECTION_END();5 comments
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Good one.
Thanks
Viswanath
Thanks
Good one
Just changing the color to the AFL library code does not really add much.
How to interprete this Pink Darvas box ?
Scanner is very good but please check value of Z Ln 112 Col 24 (I do not have coding knowledge), error is value of Z is not initiated. awinashkale@rediffmail.com