Список проголосовавших за комментарий "ChatGPT4 за минуту выдает <br/> <blockquote><p><br/> #property description «RunningBB»<br/> //---<br/> #property indicator_chart_window<br/> #property indicator_buffers 4<br/> #property indicator_plots 4<br/> #property indicator_type1 DRAW_LINE<br/> #property indicator_type2 DRAW_LINE<br/> #property indicator_type3 DRAW_LINE<br/> #property indicator_label1 «RBB middle»<br/> #property indicator_label2 «RBB upper»<br/> #property indicator_label3 «RBB lower»<br/> #property indicator_label4 «RBB ATR»</p><p><br/> class RunningMovingAverage<br/> {<br/> private:<br/> int count;<br/> double sum;</p><p>public:<br/> RunningMovingAverage(): count(0), sum(0) {}</p><p>double AddData(const double& x)<br/> {<br/> if(count == 0)<br/> sum = x;<br/> else<br/> sum += x;<br/> count++;<br/> return GetMovingAverage();<br/> }</p><p>double GetMovingAverage()<br/> {<br/> if(count == 0)<br/> return 0;<br/> return sum / count;<br/> }<br/> };<br/> class RunningVariance<br/> {<br/> private:<br/> int count;<br/> double mean;<br/> double M2;</p><p>public:<br/> RunningVariance(): count(0), mean(0), M2(0) {}</p><p>double AddData(const double& x)<br/> {<br/> count++;<br/> double delta = x — mean;<br/> mean += delta / count;<br/> double delta2 = x — mean;<br/> M2 += delta * delta2;<br/> return GetVariance();<br/> }</p><p>double GetVariance()<br/> {<br/> if(count < 2)<br/> return 0;<br/> return M2 / (count — 1);<br/> }</p><p>double GetStandardDeviation()<br/> {<br/> return sqrt(GetVariance());<br/> }<br/> };</p><p> </p><p>//+------------------------------------------------------------------+<br/> //| |<br/> //+------------------------------------------------------------------+<br/> void OnDeinit(const int reason)<br/> {<br/> delete rv;<br/> delete rma;<br/> }</p><p><br/> //+------------------------------------------------------------------+<br/> //| Custom indicator initialization function |<br/> //+------------------------------------------------------------------+<br/> int OnInit()<br/> {<br/> //--- indicator buffers mapping<br/> SetIndexBuffer(0, buffer1);<br/> SetIndexBuffer(1, buffer2);<br/> SetIndexBuffer(2, buffer3);<br/> SetIndexBuffer(3, buffer4);<br/> PlotIndexSetInteger(0,PLOT_DRAW_TYPE,DRAW_LINE);<br/> PlotIndexSetInteger(1,PLOT_DRAW_TYPE,DRAW_LINE);<br/> PlotIndexSetInteger(2,PLOT_DRAW_TYPE,DRAW_LINE);<br/> PlotIndexSetInteger(3,PLOT_DRAW_TYPE,DRAW_LINE);<br/> <br/> //--- initialize running variance objects<br/> rv = new RunningVariance();<br/> rma = new RunningMovingAverage();</p><p>return(INIT_SUCCEEDED);<br/> }</p><p>//+------------------------------------------------------------------+<br/> //| Custom indicator iteration function |<br/> //+------------------------------------------------------------------+<br/> 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[])<br/> {<br/> //--- calculate running standard deviation and moving average of the close prices<br/> for(int i = prev_calculated; i < rates_total; i++)<br/> {<br/> rv.AddData(close[i]);<br/> double stdev = rv.GetStandardDeviation();<br/> rma.AddData(close[i]);<br/> double ma = rma.GetMovingAverage();</p><p>buffer1[i] = ma + 2.0 * stdev;<br/> buffer2[i] = ma;<br/> buffer3[i] = ma — 2.0 * stdev;<br/> buffer4[i] = buffer1[i] — buffer3[i];<br/> }</p><p>return(rates_total);<br/> }</p><p>//+------------------------------------------------------------------+<br/> //| Indicator buffers |<br/> //+------------------------------------------------------------------+<br/> double buffer1[];<br/> double buffer2[];<br/> double buffer3[];<br/> double buffer4[];<br/> RunningVariance* rv;<br/> RunningMovingAverage* rma;</p></blockquote>"