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Thanks for that Gary, gives me something to try to work them out, and
whether I need them.
Further to this simple support/resistance formula I am looking at it to work
out what the retracements are during trends. I am just starting putting this
together and look for any input to help simplify or enhance. I see this as
being used to determine box sizes for P&F charts, swing points and setting
trailing stop levels to name a few.
Here is what I have so far
//RETRACEMENTS TO FIND VOLATILITY
//Graham Kavanagh 10 Oct 2003
//Find turning points
top = H==HHV(H,3) AND H>=Ref(H,1) AND H>=Ref(H,2);
bot = L==LLV(L,3) AND L<=Ref(L,1) AND L<=Ref(L,2);
//Calculate movement between turning points
topH = ValueWhen(top,H);
botL = ValueWhen(bot,L);
moveup = Ref(botL,-1)<botL;
movedown = Ref(topH,-1)>topH;
diffup = IIf( moveup, botL - ValueWhen( moveup, topH ), Null);
diffdown = IIf( movedown, topH- ValueWhen( movedown, botL ), Null);
//Indicator section
GraphXSpace=5;
Plot( C, "C", colorLightGrey, styleBar+styleNoLabel );
PlotShapes( (shapeHollowSmallCircle+shapePositionAbove)*top, colorRed, 0, H
);
PlotShapes( (shapeHollowSmallCircle)*bot, colorBlue , 0, L);
Plot(diffup, "diffup", colorAqua, styleHistogram+styleLeftAxisScale);
Plot(diffdown, "diffdown", colorLime, styleHistogram+styleLeftAxisScale);
Plot(0, "0", colorBlack, styleLine+styleLeftAxisScale);
Title = Name()+" "+Date()+ " Volatility, Red dots = peaks, blue = troughs" +
", down move = " + diffup + ", up move = " + diffdown + ", High = " + H + ",
Low = " + L;
Cheers,
Graham
http://groups.msn.com/ASXShareTrading
http://groups.msn.com/FMSAustralia
-----Original Message-----
From: Gary A. Serkhoshian [mailto:serkhoshian777@xxxxxxxxx]
Sent: Friday, 10 October 2003 12:41 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: RE: [amibroker] Simplified support resistance levels
Hi Graham,
I forgot to include the PivotLow function on the last send. Both are below.
You'd use the functions like this:
#pragma nocache
#include "Wherever you put your afl file with the functions"
PH = PivotHigh(3,3); PL = PivotLow(3,3);
Plot( C, "C", colorLightGrey, styleBar+styleNoLabel );
Plot( PH, "res", colorRed, styleDots+styleNoLine );
Plot( PL, "sup", colorGreen, styleDots+styleNoLine );
Title = Name() + ", " + Date() + ", Support & Resistance Levels Support = "
+ PH + ", Resistance = " + PL ;
If you are using functions embedded in your afl, make sure they are above
the code that actually calls them.
e.g.
Function Blah(Len);
{
return MoreBlah;
}
BL = Blah(5);
Plot(BL,"BL",colordefault,styleline);
Hope this helps,
Gary
CODE BELOW FOR THE PIVOT LOW/HI FUNCTIONS
//===== PivotHigh(LeftStr, RightStr) ====================================
/*
SUPPORT & RESISTANCE LEVELS
Graham Kavanagh 9 Oct 2003
Returns High value of pivot
*/
function PivotHigh(LeftStr, RightStr)
{
//Find turning points
top = H == HHV(H,LeftStr+1) AND H == Ref(HHV(H,RightStr+1), RightStr);
topH = ValueWhen(top,H);
return topH;
}
//======= PivotLow(LeftStr, RightStr) ====================================
/*
SUPPORT & RESISTANCE LEVELS
Graham Kavanagh 9 Oct 2003
Returns Low value of pivot
*/
function PivotLow(LeftStr, RightStr)
{
//Find turning points
BOT = L == LLV(L,LeftStr+1) AND L == Ref(LLV(L,RightStr+1), RightStr);
BOTL = ValueWhen(BOT,L);
return BOTL;
}
Graham <gkavanagh@xxxxxxxxxxxxx> wrote:
Thanks Gary
That makes it interesting as I have not yet tried the function function :)
Do you just put the numbers you want into the intital function setting
Eg
function PivotHigh(2, 4)
Cheers,
Graham
http://groups.msn.com/ASXShareTrading
http://groups.msn.com/FMSAustralia
-----Original Message-----
From: Gary A. Serkhoshian [mailto:serkhoshian777@xxxxxxxxx]
Sent: Friday, 10 October 2003 11:43 AM
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Simplified support resistance levels
Hi Graham,
I just added the ability to have variable right and left strength and
converted into a function. Hope this saves you some work, and thanks for
all the posts and code you've contributed.
Regards,
Gary
//========== PivotHigh(LeftStr, RightStr) ============================
/*
SUPPORT & RESISTANCE LEVELS
Graham Kavanagh 9 Oct 2003
Returns High value of pivot
*/
function PivotHigh(LeftStr, RightStr)
{
//Find turning points
top = H == HHV(H,LeftStr+1) AND H == Ref(HHV(H,RightStr+1), RightStr);
topH = ValueWhen(top,H);
return topH;
}
Graham <gkavanagh@xxxxxxxxxxxxx> wrote:
I have been looking at various ways to chart the support resistance elevels,
ultimately to incorporate into various trading systems. Having attempted
loops and other methods of differing complexity I pulled back to the
simplest of forms, price.
Now this is probably already shown somewhere, but will share it anyway.
Any comments appreciated
//SUPPORT & RESISTANCE LEVELS
//Graham Kavanagh 9 Oct 2003
//Find turning points
top = H==HHV(H,3) AND H>=Ref(H,1) AND H>=Ref(H,2);
bot = L==LLV(L,3) AND L<=Ref(L,1) AND L<=Ref(L,2);
topH = ValueWhen(top,H);
botL = ValueWhen(bot,L);
//Indicator section
GraphXSpace=5;
Plot( C, "C", colorLightGrey, styleBar+styleNoLabel );
Plot( topH, "res", colorRed, styleDots+styleNoLine );
Plot( botL, "sup", colorGreen, styleDots+styleNoLine );
Title = Name() + ", " + Date() + ", Support & Resistance Levels Support = "
+ topH + ", Resistance = " + botL ;
Cheers,
Graham
http://groups.msn.com/ASXShareTrading
http://groups.msn.com/FMSAustralia
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