Trend_Risk_Indicator

ÿþ//+------------------------------------------------------------------+

//|                                         Trend_Risk_Indicator.mq5 |

//|                        Copyright 2018, MetaQuotes Software Corp. |

//|                                                 https://mql5.com |

//+------------------------------------------------------------------+

#property copyright "Copyright 2018, MetaQuotes Software Corp."

#property link      "https://mql5.com"

#property version   "1.00"

#property description "Trend Risk indicator"

#property indicator_separate_window

#property indicator_buffers 10

#property indicator_plots   4

//--- plot Top

#property indicator_label1  "Top"

#property indicator_type1   DRAW_LINE

#property indicator_color1  clrCadetBlue

#property indicator_style1  STYLE_SOLID

#property indicator_width1  1

//--- plot Bottom

#property indicator_label2  "Bottom"

#property indicator_type2   DRAW_LINE

#property indicator_color2  clrCadetBlue

#property indicator_style2  STYLE_SOLID

#property indicator_width2  1

//--- plot Candles

#property indicator_label3  "Open;High;Low;Close"

#property indicator_type3   DRAW_COLOR_CANDLES

#property indicator_color3  clrGreen,clrRed,clrYellowGreen,clrOrangeRed,clrDarkGray

#property indicator_style3  STYLE_SOLID

#property indicator_width3  1

//--- plot Signal

#property indicator_label4  "Signal"

#property indicator_type4   DRAW_ARROW

#property indicator_color4  clrNONE

#property indicator_style4  STYLE_SOLID

#property indicator_width4  1

//--- input parameters

input uint     InpPeriodBands =  28;   // Bands range

input double   InpDeviation   =  3.5;  // Deviation

//--- indicator buffers

double         BufferTop[];

double         BufferBottom[];

double         BufferCandleOpen[];

double         BufferCandleHigh[];

double         BufferCandleLow[];

double         BufferCandleClose[];

double         BufferColors[];

double         BufferSmoothPrice[];

double         BufferSmoothRange[];

double         BufferNoTrade[];

//--- global variables

int            period_bands;

double         deviation;

//+------------------------------------------------------------------+

//| Custom indicator initialization function                         |

//+------------------------------------------------------------------+

int OnInit()

  {

//--- set global variables

   period_bands=int(InpPeriodBands<1 ? 1 : InpPeriodBands);

   deviation=InpDeviation;

//--- indicator buffers mapping

   SetIndexBuffer(0,BufferTop,INDICATOR_DATA);

   SetIndexBuffer(1,BufferBottom,INDICATOR_DATA);

   SetIndexBuffer(2,BufferCandleOpen,INDICATOR_DATA);

   SetIndexBuffer(3,BufferCandleHigh,INDICATOR_DATA);

   SetIndexBuffer(4,BufferCandleLow,INDICATOR_DATA);

   SetIndexBuffer(5,BufferCandleClose,INDICATOR_DATA);

   SetIndexBuffer(6,BufferColors,INDICATOR_COLOR_INDEX);

   SetIndexBuffer(7,BufferNoTrade,INDICATOR_DATA);

   SetIndexBuffer(8,BufferSmoothPrice,INDICATOR_CALCULATIONS);

   SetIndexBuffer(9,BufferSmoothRange,INDICATOR_CALCULATIONS);

//--- setting indicator parameters

   IndicatorSetString(INDICATOR_SHORTNAME,"Trend Risk Indicator ("+(string)period_bands+","+DoubleToString(deviation,1)+")");

   IndicatorSetInteger(INDICATOR_DIGITS,Digits());

//--- setting plot buffer parameters

   PlotIndexSetInteger(2,PLOT_SHOW_DATA,false);

//--- setting buffer arrays as timeseries

   ArraySetAsSeries(BufferTop,true);

   ArraySetAsSeries(BufferBottom,true);

   ArraySetAsSeries(BufferCandleOpen,true);

   ArraySetAsSeries(BufferCandleHigh,true);

   ArraySetAsSeries(BufferCandleLow,true);

   ArraySetAsSeries(BufferCandleClose,true);

   ArraySetAsSeries(BufferColors,true);

   ArraySetAsSeries(BufferNoTrade,true);

   ArraySetAsSeries(BufferSmoothPrice,true);

   ArraySetAsSeries(BufferSmoothRange,true);

//---

   return(INIT_SUCCEEDED);

  }

//+------------------------------------------------------------------+

//| Custom indicator iteration function                              |

//+------------------------------------------------------------------+

int 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[])

  {

//--- #AB0=>2:0 <0AA82>2 1CD5@>2 :0: B09<A5@89

   ArraySetAsSeries(open,true);

   ArraySetAsSeries(high,true);

   ArraySetAsSeries(low,true);

   ArraySetAsSeries(close,true);

//--- @>25@:0 8 @0AGQB :>;8G5AB20 ?@>AG8BK205<KE 10@>2

   if(rates_total<4) return 0;

//--- @>25@:0 8 @0AGQB :>;8G5AB20 ?@>AG8BK205<KE 10@>2

   int limit=rates_total-prev_calculated;

   if(limit>1)

     {

      limit=rates_total-1;

      ArrayInitialize(BufferTop,EMPTY_VALUE);

      ArrayInitialize(BufferBottom,EMPTY_VALUE);

      ArrayInitialize(BufferCandleOpen,EMPTY_VALUE);

      ArrayInitialize(BufferCandleHigh,EMPTY_VALUE);

      ArrayInitialize(BufferCandleLow,EMPTY_VALUE);

      ArrayInitialize(BufferCandleClose,EMPTY_VALUE);

      ArrayInitialize(BufferColors,4);

      ArrayInitialize(BufferNoTrade,EMPTY_VALUE);

      ArrayInitialize(BufferSmoothPrice,0);

      ArrayInitialize(BufferSmoothRange,0);

     }



//---  0AGQB 8=48:0B>@0

   for(int i=limit; i>=0 && !IsStopped(); i--)

     {

      if(i==rates_total-1)

        {

         BufferSmoothPrice[i]=close[i];

         BufferSmoothRange[i]=high[i]-low[i];

        }

      else

        {

         BufferSmoothPrice[i]=(BufferSmoothPrice[i+1]*(period_bands-1)+close[i])/period_bands;

         BufferSmoothRange[i]=(BufferSmoothRange[i+1]*(period_bands-1)+high[i]-low[i])/period_bands;

        }



      BufferTop[i]=BufferSmoothPrice[i]+BufferSmoothRange[i]*deviation;

      BufferBottom[i]=BufferSmoothPrice[i]-BufferSmoothRange[i]*deviation;

      

      BufferCandleOpen[i]=open[i];

      BufferCandleHigh[i]=high[i];

      BufferCandleLow[i]=low[i];

      BufferCandleClose[i]=close[i];

      

      BufferNoTrade[i]=EMPTY_VALUE;

      BufferColors[i]=(BufferCandleClose[i]>BufferCandleOpen[i] ? 0 : BufferCandleClose[i]<BufferCandleOpen[i] ? 1 : 4);

      if(close[i]>BufferTop[i])

        {

         BufferColors[i]=4;

         BufferNoTrade[i]=BufferTop[i];

         PlotIndexSetString(3,PLOT_LABEL,"Do not trade");   // >6=> 2?8A0BL "Do not Buy" ?@8 B>@3>2;5 ?> B@5=4C (25@>OB=> 70<54;5=85 2>AE>4OI53> B@5=40)

        }

      else if(close[i]<BufferBottom[i])

        {

         BufferColors[i]=4;

         BufferNoTrade[i]=BufferBottom[i];

         PlotIndexSetString(3,PLOT_LABEL,"Do not trade");   // >6=> 2?8A0BL "Do not Sell" ?@8 B>@3>2;5 ?> B@5=4C (25@>OB=> 70<54;5=85 =8AE>4OI53> B@5=40)

        }

      else

         PlotIndexSetString(3,PLOT_LABEL,"Trade allowed");

     }



//--- return value of prev_calculated for next call

   return(rates_total);

  }

//+------------------------------------------------------------------+