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Pivot Finder for Amibroker (AFL)

mamunbaf9117 over 15 years ago Amibroker (AFL)

  • Rating:
    3 / 5 (Votes 11)
  • Tags:
    amibroker, pivots

I found it from a collection of .afl. i do not know the author of this afl but whoever made it did an excellent job.

It automatically find out pivot points and according to that gives the buy and sell signal.

Screenshots

Indicator / Formula

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//  /* **********************************
//
//  Code to automatically identify pivots
//
//  ********************************** */
//
//  // -- what will be our lookback range for the hh and ll?
//
//  farback=Param("How Far back to go",100,50,5000,10);
//
//  nBars = Param("Number of bars", 12, 5, 40);
//
//  // -- Title.
//
//  Title = Name() + " (" + StrLeft(FullName(), 15) + ") O: " + Open + ",
//
//  H: " + High + ", L: " + Low + ", C: " + Close;
//
//  // -- Plot basic candle chart
//
//  PlotOHLC(Open, High, Low, Close,
//
//  "BIdx = " + BarIndex() +
//
//  "\n" + "O = " + O + "\n"+"H = "+ H + "\n"+"L = " + L
//
//  + "\n"+"C ",
//
//  colorBlack, styleCandle);
//
//  GraphXSpace=7;
//
//  // -- Create 0-initialized arrays the size of barcount
//
//  aHPivs = H - H;
//
//  aLPivs = L - L;
//
//  // -- More for future use, not necessary for basic plotting
//
//  aHPivHighs = H - H;
//
//  aLPivLows = L - L;
//
//  aHPivIdxs = H - H;
//
//  aLPivIdxs = L - L;
//
//  nHPivs = 0;
//
//  nLPivs = 0;
//
//  lastHPIdx = 0;
//
//  lastLPIdx = 0;
//
//  lastHPH = 0;
//
//  lastLPL = 0;
//
//  curPivBarIdx = 0;
//
//  // -- looking back from the current bar, how many bars
//
//  // back were the hhv and llv values of the previous
//
//  // n bars, etc.?
//
//  aHHVBars = HHVBars(H, nBars);
//
//  aLLVBars = LLVBars(L, nBars);
//
//  aHHV = HHV(H, nBars);
//
//  aLLV = LLV(L, nBars);
//
//  // -- Would like to set this up so pivots are calculated back from
//
//  // last visible bar to make it easy to "go back" and see the pivots
//
//  // this code would find. However, the first instance of
//
//  // _Trace output will show a value of 0
//
//  aVisBars = Status("barvisible");
//
//  nLastVisBar = LastValue(Highest(IIf(aVisBars, BarIndex(), 0)));
//
//  _TRACE("Last visible bar: " + nLastVisBar);
//
//  // -- Initialize value of curTrend
//
//  curBar = (BarCount-1);
//
//  curTrend = "";
//
//  if (aLLVBars[curBar] <
//
//  aHHVBars[curBar]) {
//
//  curTrend = "D";
//
//  }
//
//  else {
//
//  curTrend = "U";
//
//  }
//
//  // -- Loop through bars. Search for
//
//  // entirely array-based approach
//
//  // in future version
//
//  for (i=0; i<farback; i++) {
//
//  curBar = (BarCount - 1) - i;
//
//  // -- Have we identified a pivot? If trend is down...
//
//  if (aLLVBars[curBar] < aHHVBars[curBar]) {
//
//  // ... and had been up, this is a trend change
//
//  if (curTrend == "U") {
//
//  curTrend = "D";
//
//  // -- Capture pivot information
//
//  curPivBarIdx = curBar - aLLVBars[curBar];
//
//  aLPivs[curPivBarIdx] = 1;
//
//  aLPivLows[nLPivs] = L[curPivBarIdx];
//
//  aLPivIdxs[nLPivs] = curPivBarIdx;
//
//  nLPivs++;
//
//  }
//
//  // -- or current trend is up
//
//  } else {
//
//  if (curTrend == "D") {
//
//  curTrend = "U";
//
//  curPivBarIdx = curBar - aHHVBars[curBar];
//
//  aHPivs[curPivBarIdx] = 1;
//
//  aHPivHighs[nHPivs] = H[curPivBarIdx];
//
//  aHPivIdxs[nHPivs] = curPivBarIdx;
//
//  nHPivs++;
//
//  }
//
//  // -- If curTrend is up...else...
//
//  }
//
//  // -- loop through bars
//
//  }
//
//  // -- Basic attempt to add a pivot this logic may have missed
//
//  // -- OK, now I want to look at last two pivots. If the most
//
//  // recent low pivot is after the last high, I could
//
//  // still have a high pivot that I didn't catch
//
//  // -- Start at last bar
//
//  curBar = (BarCount-1);
//
//  candIdx = 0;
//
//  candPrc = 0;
//
//  lastLPIdx = aLPivIdxs[0];
//
//  lastLPL = aLPivLows[0];
//
//  lastHPIdx = aHPivIdxs[0];
//
//  lastHPH = aHPivHighs[0];
//
//  if (lastLPIdx > lastHPIdx) {
//
//  // -- Bar and price info for candidate pivot
//
//  candIdx = curBar - aHHVBars[curBar];
//
//  candPrc = aHHV[curBar];
//
//  if (
//
//  lastHPH < candPrc AND
//
//  candIdx > lastLPIdx AND
//
//  candIdx < curBar) {
//
//  // -- OK, we'll add this as a pivot...
//
//  aHPivs[candIdx] = 1;
//
//  // ...and then rearrange elements in the
//
//  // pivot information arrays
//
//  for (j=0; j<nHPivs; j++) {
//
//  aHPivHighs[nHPivs-j] = aHPivHighs[nHPivs-
//
//  (j+1)];
//
//  aHPivIdxs[nHPivs-j] = aHPivIdxs[nHPivs-(j+1)];
//
//  }
//
//  aHPivHighs[0] = candPrc ;
//
//  aHPivIdxs[0] = candIdx;
//
//  nHPivs++;
//
//  }
//
//  } else {
//
//  // -- Bar and price info for candidate pivot
//
//  candIdx = curBar - aLLVBars[curBar];
//
//  candPrc = aLLV[curBar];
//
//  if (
//
//  lastLPL > candPrc AND
//
//  candIdx > lastHPIdx AND
//
//  candIdx < curBar) {
//
//  // -- OK, we'll add this as a pivot...
//
//  aLPivs[candIdx] = 1;
//
//  // ...and then rearrange elements in the
//
//  // pivot information arrays
//
//  for (j=0; j<nLPivs; j++) {
//
//  aLPivLows[nLPivs-j] = aLPivLows[nLPivs-(j+1)];
//
//  aLPivIdxs[nLPivs-j] = aLPivIdxs[nLPivs-(j+1)];
//
//  }
//
//  aLPivLows[0] = candPrc;
//
//  aLPivIdxs[0] = candIdx;
//
//  nLPivs++;
//
//  }
//
//  }
//
//  // -- Dump inventory of high pivots for debugging
//
//  /*
//
//  for (k=0; k<nHPivs; k++) {
//
//  _TRACE("High pivot no. " + k
//
//  + " at barindex: " + aHPivIdxs[k] + ", "
//
//  + WriteVal(ValueWhen(BarIndex()==aHPivIdxs[k],
//
//  DateTime(), 1), formatDateTime)
//
//  + ", " + aHPivHighs[k]);
//
//  }
//
//  */
//
//  // -- OK, let's plot the pivots using arrows
//
//  PlotShapes(
//
//  IIf(aHPivs==1, shapeDownArrow, shapeNone), colorRed, 0,
//
//  High, Offset=-15);
//
//  PlotShapes(
//
//  IIf(aLPivs==1, shapeUpArrow , shapeNone), colorGreen, 0,
//
//  Low, Offset=-15);
//
//------------------------------------------------------------------------------

  /* **********************************

Code to automatically identify pivots

********************************** */

// -- what will be our lookback range for the hh and ll?
farback=Param("How Far back to go",100,50,5000,10);
nBars = Param("Number of bars", 12, 5, 40);

// -- Title.

Title = Name() + " (" + StrLeft(FullName(), 15) + ") O: " + Open + ", 

H: " + High + ", L: " + Low + ", C: " + Close;

// -- Plot basic candle chart

PlotOHLC(Open, High, Low, Close, 

"BIdx = " + BarIndex() + 

"\n" + "O = " + O + "\n"+"H = "+ H + "\n"+"L = " + L 

+ "\n"+"C ",

colorBlack, styleCandle); 

GraphXSpace=7;

// -- Create 0-initialized arrays the size of barcount

aHPivs = H - H;

aLPivs = L - L;

// -- More for future use, not necessary for basic plotting

aHPivHighs = H - H;

aLPivLows = L - L;

aHPivIdxs = H - H;

aLPivIdxs = L - L;

nHPivs = 0;

nLPivs = 0;

lastHPIdx = 0;

lastLPIdx = 0;

lastHPH = 0;

lastLPL = 0;

curPivBarIdx = 0;

// -- looking back from the current bar, how many bars 

// back were the hhv and llv values of the previous 

// n bars, etc.?

aHHVBars = HHVBars(H, nBars);

aLLVBars = LLVBars(L, nBars);

aHHV = HHV(H, nBars);

aLLV = LLV(L, nBars);

// -- Would like to set this up so pivots are calculated back from

// last visible bar to make it easy to "go back" and see the pivots

// this code would find. However, the first instance of 

// _Trace output will show a value of 0

aVisBars = Status("barvisible");

nLastVisBar = LastValue(Highest(IIf(aVisBars, BarIndex(), 0)));

_TRACE("Last visible bar: " + nLastVisBar);

// -- Initialize value of curTrend

curBar = (BarCount-1);

curTrend = "";

if (aLLVBars[curBar] < 

aHHVBars[curBar]) {

curTrend = "D";

}

else {

curTrend = "U";

}

// -- Loop through bars. Search for 

// entirely array-based approach

// in future version

for (i=0; i<farback; i++) {

curBar = (BarCount - 1) - i;

// -- Have we identified a pivot? If trend is down...

if (aLLVBars[curBar] < aHHVBars[curBar]) {

// ... and had been up, this is a trend change

if (curTrend == "U") {

curTrend = "D";

// -- Capture pivot information

curPivBarIdx = curBar - aLLVBars[curBar];

aLPivs[curPivBarIdx] = 1;

aLPivLows[nLPivs] = L[curPivBarIdx];

aLPivIdxs[nLPivs] = curPivBarIdx;

nLPivs++;

}

// -- or current trend is up

} else {

if (curTrend == "D") {

curTrend = "U";

curPivBarIdx = curBar - aHHVBars[curBar];

aHPivs[curPivBarIdx] = 1;

aHPivHighs[nHPivs] = H[curPivBarIdx];

aHPivIdxs[nHPivs] = curPivBarIdx;

nHPivs++;

}

// -- If curTrend is up...else...

} 

// -- loop through bars

} 

// -- Basic attempt to add a pivot this logic may have missed

// -- OK, now I want to look at last two pivots. If the most 

// recent low pivot is after the last high, I could

// still have a high pivot that I didn't catch

// -- Start at last bar

curBar = (BarCount-1);

candIdx = 0;

candPrc = 0;

lastLPIdx = aLPivIdxs[0];

lastLPL = aLPivLows[0];

lastHPIdx = aHPivIdxs[0];

lastHPH = aHPivHighs[0];

if (lastLPIdx > lastHPIdx) {

// -- Bar and price info for candidate pivot

candIdx = curBar - aHHVBars[curBar];

candPrc = aHHV[curBar]; 

if (

lastHPH < candPrc AND

candIdx > lastLPIdx AND

candIdx < curBar) {


// -- OK, we'll add this as a pivot...

aHPivs[candIdx] = 1;

// ...and then rearrange elements in the 

// pivot information arrays

for (j=0; j<nHPivs; j++) {

aHPivHighs[nHPivs-j] = aHPivHighs[nHPivs-

(j+1)];

aHPivIdxs[nHPivs-j] = aHPivIdxs[nHPivs-(j+1)];

}

aHPivHighs[0] = candPrc ;

aHPivIdxs[0] = candIdx;

nHPivs++;

} 

} else {


// -- Bar and price info for candidate pivot

candIdx = curBar - aLLVBars[curBar];

candPrc = aLLV[curBar]; 

if (

lastLPL > candPrc AND

candIdx > lastHPIdx AND

candIdx < curBar) {


// -- OK, we'll add this as a pivot...

aLPivs[candIdx] = 1;

// ...and then rearrange elements in the 

// pivot information arrays

for (j=0; j<nLPivs; j++) {

aLPivLows[nLPivs-j] = aLPivLows[nLPivs-(j+1)];

aLPivIdxs[nLPivs-j] = aLPivIdxs[nLPivs-(j+1)];

}

aLPivLows[0] = candPrc;

aLPivIdxs[0] = candIdx;

nLPivs++;

}

}

// -- Dump inventory of high pivots for debugging

/*

for (k=0; k<nHPivs; k++) {

_TRACE("High pivot no. " + k

+ " at barindex: " + aHPivIdxs[k] + ", " 

+ WriteVal(ValueWhen(BarIndex()==aHPivIdxs[k], 

DateTime(), 1), formatDateTime)

+ ", " + aHPivHighs[k]);

}

*/

// -- OK, let's plot the pivots using arrows

PlotShapes(

IIf(aHPivs==1, shapeDownArrow, shapeNone), colorRed, 0,

High, Offset=-15);

PlotShapes(

IIf(aLPivs==1, shapeUpArrow , shapeNone), colorGreen, 0, 

Low, Offset=-15);

8 comments

1. Anonymous
over 15 years ago

Hi,

Do you trade this?
On what timeframe?
What’s your experience with this?

Thanks,

Ceurami

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2. mamunbaf9117
over 15 years ago

@ Ceurami : i do. plz ck with ur scripts….u can co-relate with your previous experienced scripts. i m sure u will get something very interesting..

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6. cm_s
over 14 years ago

Some signals are cancelled later!
System doesn’t work!

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8. jiten02
over 7 years ago

HOW TO ADD TRXT COLUMN OF TRADE WITH OPTION BUY (GREEN BGCOLOR) AND SELL (BGRED) IN EXPLORATION,

expected soon reply

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