268 lines
11 KiB
Plaintext
268 lines
11 KiB
Plaintext
//+------------------------------------------------------------------+
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//| ConsecutiveRSI.mq5 |
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//| Jay Davis |
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//| https://www.tidyneat.com |
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//+------------------------------------------------------------------+
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#property copyright "Jay Davis"
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#property link "https://tidyneat.com"
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#property version "1.00"
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#property description "Detect bullish and bearish consecutive candles when entering overbought or oversold territory"
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#property indicator_separate_window
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#property indicator_buffers 5
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#property indicator_plots 5
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//--- drawing iRSI
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#property indicator_label1 "iRSI"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrDodgerBlue
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 1
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//--- the Bullish Consecutive OverSold symbol
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#property indicator_label2 "Bullish_OverSold"
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#property indicator_type2 DRAW_ARROW
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#property indicator_color2 clrOrange
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#property indicator_width2 3
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//--- the Bearish OverSold symbol
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#property indicator_label3 "Bearish OverSold"
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#property indicator_type3 DRAW_ARROW
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#property indicator_color3 clrOrange
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#property indicator_width3 3
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//--- the Bullish OverBought symbol
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#property indicator_label4 "Bullish_OverBought"
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#property indicator_type4 DRAW_ARROW
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#property indicator_color4 clrCornflowerBlue
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#property indicator_width4 3
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//--- the Bearish OverBought symbol
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#property indicator_label5 "Bearish_OverBought"
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#property indicator_type5 DRAW_ARROW
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#property indicator_color5 clrCornflowerBlue
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#property indicator_width5 3
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//--- limits for displaying of values in the indicator window
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#property indicator_maximum 100
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#property indicator_minimum 0
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//--- horizontal levels in the indicator window
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#property indicator_level1 70.0
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#property indicator_level2 30.0
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//--- input parameters
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input int consecutive=3; // No. of Consecutive candles
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input string RSI_parameters="===================================";
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input int ma_period=14; // period of averaging
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input int overBought=70;
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input int overSold=30;
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input ENUM_APPLIED_PRICE applied_price=PRICE_CLOSE; // type of price
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input ENUM_TIMEFRAMES period=PERIOD_CURRENT; // timeframe
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//--- indicator buffer
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double iRSIBuffer[],bulloversold[],bearoversold[],
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bulloverbought[],bearoverbought[];
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//--- variable for storing the handle of the iRSI indicator
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int handle;
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//--- variable for storing
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string name=_Symbol;
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//--- name of the indicator on a chart
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string short_name;
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//--- we will keep the number of values in the Relative Strength Index indicator
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int bars_calculated=0;
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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//--- set horizontal levels accoring to input overbought and oversold
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IndicatorSetDouble(INDICATOR_LEVELVALUE,0,overBought);
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IndicatorSetDouble(INDICATOR_LEVELVALUE,1,overSold);
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//--- set descriptions of horizontal levels
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string display="OverBought "+(string) overBought;
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IndicatorSetString(INDICATOR_LEVELTEXT,0,display);
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display="OverSold "+(string) overSold;
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IndicatorSetString(INDICATOR_LEVELTEXT,1,display);
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//--- assignment of array to indicator buffer
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SetIndexBuffer(0,iRSIBuffer,INDICATOR_DATA);
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SetIndexBuffer(1,bulloversold,INDICATOR_DATA);
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SetIndexBuffer(2,bearoversold,INDICATOR_DATA);
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SetIndexBuffer(3,bulloverbought,INDICATOR_DATA);
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SetIndexBuffer(4,bearoverbought,INDICATOR_DATA);
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PlotIndexSetInteger(1,PLOT_ARROW,246);
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PlotIndexSetInteger(2,PLOT_ARROW,248);
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PlotIndexSetInteger(3,PLOT_ARROW,246);
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PlotIndexSetInteger(4,PLOT_ARROW,248);
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//--- Set an empty value
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PlotIndexSetDouble(1,PLOT_EMPTY_VALUE,0);
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PlotIndexSetDouble(2,PLOT_EMPTY_VALUE,0);
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PlotIndexSetDouble(3,PLOT_EMPTY_VALUE,0);
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PlotIndexSetDouble(4,PLOT_EMPTY_VALUE,0);
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//--- create handle of the indicator
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handle=iRSI(name,period,ma_period,applied_price);
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//--- if the handle is not created
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if(handle==INVALID_HANDLE)
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{
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//--- tell about the failure and output the error code
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PrintFormat("Failed to create handle of the iRSI indicator for the symbol %s/%s, error code %d",
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name,
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EnumToString(period),
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GetLastError());
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//--- the indicator is stopped early
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return(INIT_FAILED);
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}
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//--- show the symbol/timeframe the Relative Strength Index indicator is calculated for
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short_name=StringFormat("iRSI(%s/%s, %d, %d)",name,EnumToString(period),
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ma_period,applied_price);
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IndicatorSetString(INDICATOR_SHORTNAME,short_name);
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//--- normal initialization of the indicator
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return(INIT_SUCCEEDED);
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}
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//+------------------------------------------------------------------+
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//| Custom indicator iteration function |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const datetime &time[],
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const double &open[],
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const double &high[],
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const double &low[],
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const double &close[],
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const long &tick_volume[],
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const long &volume[],
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const int &spread[])
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{
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//--- number of values copied from the iRSI indicator
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int values_to_copy;
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//--- determine the number of values calculated in the indicator
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int calculated=BarsCalculated(handle);
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if(calculated<=0)
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{
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PrintFormat("BarsCalculated() returned %d, error code %d",calculated,GetLastError());
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return(0);
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}
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//--- if it is the first start of calculation of the indicator or if the number of values in the iRSI indicator changed
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//---or if it is necessary to calculated the indicator for two or more bars (it means something has changed in the price history)
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if(prev_calculated==0 || calculated!=bars_calculated || rates_total>prev_calculated+1)
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{
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//--- if the iRSIBuffer array is greater than the number of values in the iRSI indicator for symbol/period, then we don't copy everything
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//--- otherwise, we copy less than the size of indicator buffers
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if(calculated>rates_total) values_to_copy=rates_total;
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else values_to_copy=calculated;
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}
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else
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{
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//--- it means that it's not the first time of the indicator calculation, and since the last call of OnCalculate()
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//--- for calculation not more than one bar is added
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values_to_copy=(rates_total-prev_calculated)+1;
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}
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//--- fill the array with values of the iRSI indicator
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//--- if FillArrayFromBuffer returns false, it means the information is nor ready yet, quit operation
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if(!FillArrayFromBuffer(iRSIBuffer,handle,values_to_copy)) return(0);
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//--- form the message
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string comm=StringFormat("%s ==> Updated value in the indicator %s: %d",
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TimeToString(TimeCurrent(),TIME_DATE|TIME_SECONDS),
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short_name,
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values_to_copy);
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//--- display the service message on the chart
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Comment(comm);
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//--- memorize the number of values in the Relative Strength Index indicator
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bars_calculated=calculated;
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//--- Insert Candle counting logic and fill the buffers
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ArraySetAsSeries(open,false);
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ArraySetAsSeries(close,false);
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int startValue=prev_calculated;
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if(startValue==0)startValue=consecutive;
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for(int i=rates_total; i>startValue; i--)
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{
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if(i<=rates_total-consecutive)
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if(iRSIBuffer[i]>overBought && iRSIBuffer[i-1]<overBought)
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{
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// Check for consecutive candles on overbought cross
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if(ConsecutiveBulls(i,open,close))
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{
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bulloverbought[i]=iRSIBuffer[i];
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}
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else if(ConsecutiveBears(i,open,close))
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{
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bearoverbought[i]=iRSIBuffer[i];
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}
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}
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else if(iRSIBuffer[i]<overSold && iRSIBuffer[i-1]>overSold)
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{
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// Check for consecutive candles on oversold cross
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if(ConsecutiveBulls(i,open,close))
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{
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bulloversold[i]=iRSIBuffer[i];
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}
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else if(ConsecutiveBears(i,open,close))
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{
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bearoversold[i]=iRSIBuffer[i];
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}
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}
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}
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//--- return the prev_calculated value for the next call
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//| Filling indicator buffers from the iRSI indicator |
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//+------------------------------------------------------------------+
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bool FillArrayFromBuffer(double &rsi_buffer[], // indicator buffer of Relative Strength Index values
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int ind_handle, // handle of the iRSI indicator
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int amount // number of copied values
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)
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{
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//--- reset error code
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ResetLastError();
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//--- fill a part of the iRSIBuffer array with values from the indicator buffer that has 0 index
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if(CopyBuffer(ind_handle,0,0,amount,rsi_buffer)<0)
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{
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//--- if the copying fails, tell the error code
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PrintFormat("Failed to copy data from the iRSI indicator, error code %d",GetLastError());
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//--- quit with zero result - it means that the indicator is considered as not calculated
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return(false);
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}
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//--- everything is fine
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return(true);
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}
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//+------------------------------------------------------------------+
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//| Indicator deinitialization function |
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//+------------------------------------------------------------------+
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void OnDeinit(const int reason)
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{
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//--- clear the chart after deleting the indicator
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Comment("");
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}
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//+------------------------------------------------------------------+
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//| produces true is there is a given number of consecutive bulls |
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//+------------------------------------------------------------------+
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bool ConsecutiveBulls(int bar,
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const double &open[],
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const double &close[])
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{
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for(int i=0; i<consecutive; i++)
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{
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if(open[bar-i]>close[bar-i])
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{
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return false;
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}
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}
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return true;
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}
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//+------------------------------------------------------------------+
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//| produces true if there is a given number fo consecutive bears |
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//+------------------------------------------------------------------+
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bool ConsecutiveBears(int bar,
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const double &open[],
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const double &close[])
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{
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for(int i=0; i<consecutive; i++)
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{
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if(open[bar-i]<close[bar-i])
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{
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return false;
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}
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}
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return true;
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}
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//+------------------------------------------------------------------+
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