Termos de Referência
here's the code,
+------------------------------------------------------------------+
//| kama.mq4 |
//| Copyright 2022, MetaQuotes Software Corp. |
//| https://www.mql5.com |
//| Heikin/Kaufman Strategy Expert Advisor |
//| By OpenAI (ChatGPT) |
//+------------------------------------------------------------------+
// Inputs
input int Length = 5;
input double Fastend = 2.5;
input int Slowend = 20;
input int test = 0;
input int sloma = 20;
// Indicator buffers
double nAMABuffer[];
double fmaBuffer[];
double smaBuffer[];
double ha_closeBuffer[];
double mha_closeBuffer[];
// External variables
extern double LotSize = 0.01; // Trading lot size
extern int StopLoss = 50; // Stop loss in pips
extern int TakeProfit = 100; // Take profit in pips
// Trading parameters
int ticket = -1;
int slippage = 3;
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void OnCalculate(const int rates_total, const int prev_calculated, const datetime& time[], const double& open[], const double& high[], const double& low[], const double& close[], const long& tick_volume[], const long& volume[], const int& spread[])
{
int start = prev_calculated > 0 ? prev_calculated - 1 : 0;
ArrayResize(nAMABuffer, rates_total);
ArrayResize(fmaBuffer, rates_total);
ArrayResize(smaBuffer, rates_total);
ArrayResize(ha_closeBuffer, rates_total);
ArrayResize(mha_closeBuffer, rates_total);
double nfastend = 2 / (Fastend + 1);
double nslowend = 2 / (Slowend + 1);
for(int i = start; i < rates_total; i++)
{
double xPrice = (high[i] + low[i] + close[i]) / 3;
double xvnoise = MathAbs(xPrice - xPrice[test]);
double nsignal = MathAbs(xPrice - xPrice[i - Length]);
double nnoise = 0;
for(int j = i - Length + 1; j <= i; j++)
{
double xv = MathAbs((high[j] + low[j] + close[j]) / 3 - (high[j - 1] + low[j - 1] + close[j - 1]) / 3);
nnoise += xv;
}
double nefratio = nnoise != 0 ? nsignal / nnoise : 0;
double nsmooth = MathPow(nefratio * (nfastend - nslowend) + nslowend, 2);
nAMABuffer[i] = i > 0 ? nAMABuffer[i - 1] + nsmooth * (xPrice - nAMABuffer[i - 1]) : xPrice;
int ha_t = iCustom(NULL, 0, "Heikin Ashi", 0, i);
ha_closeBuffer[i] = iCustom(NULL, 0, "Heikin Ashi", 2, i, ha_t);
mha_closeBuffer[i] = iCustom(NULL, res1, "Heikin Ashi", 1, i, ha_t);
if(i >= test)
{
fmaBuffer[i] = iMAOnArray(mha_closeBuffer, rates_total, 1, 0, test, i);
}
if(i >= sloma)
{
smaBuffer[i] = iMAOnArray(ha_closeBuffer, rates_total, sloma, 0, MODE_EMA, i);
}
}
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
int OnInit()
{
SetIndexBuffer(0, fmaBuffer);
SetIndexBuffer(1, smaBuffer);
SetIndexStyle(0, DRAW_LINE);
SetIndexStyle(1, DRAW_LINE);
SetIndexLabel(0, "MA");
SetIndexLabel(1, "SMA");
double emptyBufferArray[];
{
int totalBars = ArraySize(open); // Retrieve the size of the 'open' array
int start = prev_calculated > 0 ? prev_calculated - 1 : 0;
// Rest of your code...
for(int i = start; i < totalBars; i++)
{
// Processing for each bar
}
// Rest of your code...
}
SetIndexBuffer(2, emptyBufferArray, INDICATOR_DATA);
double emptyBufferArray2[];
ArrayResize(emptyBufferArray2, rates_total);
SetIndexBuffer(3, emptyBufferArray2, INDICATOR_DATA);
SetIndexStyle(2, DRAW_ARROW);
SetIndexStyle(3, DRAW_ARROW);
SetIndexArrow(2, SYMBOL_ARROWUP);
SetIndexArrow(3, SYMBOL_ARROWDOWN);
SetIndexEmptyValue(2, 0);
SetIndexEmptyValue(3, 0);
return INIT_SUCCEEDED;
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
ArrayFree(nAMABuffer);
ArrayFree(fmaBuffer);
ArrayFree(smaBuffer);
ArrayFree(ha_closeBuffer);
ArrayFree(mha_closeBuffer);
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void OnTick()
{
if(ticket == -1 && OrdersTotal() == 0)
{
int rates_total = RatesTotal();
int start = MathMax(0, rates_total - 1 - 1000);
for(int i = start; i < rates_total; i++)
{
if(fmaBuffer[i - 1] > smaBuffer[i - 1] && fmaBuffer[i] < smaBuffer[i])
{
ObjectCreate("CrossUnder", OBJ_TRIANGLE, 0, Time[i], High[i], 0);
ObjectSet("CrossUnder", OBJPROP_STYLE, STYLE_SOLID);
ObjectSet("CrossUnder", OBJPROP_WIDTH, 1);
ObjectSet("CrossUnder", OBJPROP_BACK, Red);
ObjectSetText("CrossUnder", "S", 8, "Arial", Red);
}
}
if(fmaBuffer[rates_total - 2] > smaBuffer[rates_total - 2] && fmaBuffer[rates_total - 1] < smaBuffer[rates_total - 1])
{
ticket = OrderSend(Symbol(), OP_BUY, LotSize, Ask, slippage, Ask - StopLoss * Point, Ask + TakeProfit * Point);
if(ticket < 0)
Print("Error opening buy order:", GetLastError());
}
else
{
if(ticket == -1 && OrdersTotal() == 0)
{
int crossUnderBar = -1;
{
if(fmaBuffer[i - 1] > smaBuffer[i - 1] && fmaBuffer[i] < smaBuffer[i])
{
crossUnderBar = i;
}
}
if(crossUnderBar != -1)
{
double crossUnderPrice = Low[crossUnderBar];
ObjectCreate("CrossUnder", OBJ_TRIANGLE, 0, Time[crossUnderBar], crossUnderPrice, 0);
ObjectSet("CrossUnder", OBJPROP_STYLE, STYLE_SOLID);
ObjectSet("CrossUnder", OBJPROP_WIDTH, 1);
ObjectSet("CrossUnder", OBJPROP_BACK, Red);
ObjectSetText("CrossUnder", "S", 8, "Arial", Red);
}
// Rest of your code...
}
// Rest of your code...
}
{
ticket = OrderSend(Symbol(), OP_SELL, LotSize, Bid, slippage, Bid + StopLoss * Point, Bid - TakeProfit * Point);
if(ticket < 0)
Print("Error opening sell order:", GetLastError());
}
}
if(ticket >= 0)
{
if(OrderSelect(ticket, SELECT_BY_TICKET, MODE_TRADES))
{
if(OrderType() == OP_BUY && Bid - OrderStopLoss() > TakeProfit * Point)
{
if(OrderModify(ticket, OrderOpenPrice(), Bid - TakeProfit * Point, OrderTakeProfit(), 0, Green))
{
ticket = -1;
}
else
{
Print("Error modifying buy order:", GetLastError());
}
}
else
if(OrderType() == OP_SELL && OrderStopLoss() - Ask > TakeProfit * Point)
{
if(OrderModify(ticket, OrderOpenPrice(), Ask + TakeProfit * Point, OrderTakeProfit(), 0, Green))
{
ticket = -1;
}
else
{
Print("Error modifying sell order:", GetLastError());
}
}
}
else
{
Print("Error selecting order:", GetLastError());
ticket = -1;
}
}
}
//+------------------------------------------------------------------+
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