语句的确切含义？

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Rosh 老师，您好

软件语句中，Bars 给出的数目，包括最新的 Bar 嗎？（最新的 Bar 是指正在实时变动的 Bar 。比如：小时图的最右边的那个）

Indicatorcounted( ) 在程式运行中，最新给出的数目是否也包括最新的 Bar ?

[Rashid Umarov]

No. Last uncompleted bar is not included into IndicatorsCounted(). See such simple indicator:

//+------------------------------------------------------------------+
//|                                        CheckIndicatorCounted.mq4 |
//|                      Copyright © 2007, MetaQuotes Software Corp. |
//|                                        https://www.metaquotes.net/ru/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2007, MetaQuotes Software Corp."
#property link      "https://www.metaquotes.net/ru/"
 
#property indicator_chart_window
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int    counted_bars=IndicatorCounted();
//----
   Print(TimeToStr(TimeCurrent()),"    Bars=",Bars,"  Indicatorcounted=",counted_bars);
//----
   return(0);
  }
//+------------------------------------------------------------------+

Compile it as indicator and attach, for example, to EURUSD 5min chart. You will see how it works.

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谢谢 Rosh 老师

还有一个问题，我执行另一个指标时，如果要将指标的一部分消除（就象把一张纸上的一条线用橡皮擦擦去其中的一部分一样），如何操作？谢谢！

[Rashid Umarov]

I don't understand your question. Explain it with more details, please.

[okwh]

一般是　赋值　EMPTY_VALUE

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Rosh:
I don't understand your question. Explain it with more details, please.

Roch 老師，幫我看一下這個指標哪裏出錯了？指標窗口可以顯示 bb 這條線，但是 aa 這條就顯示不出，鬱悶啊！

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Yellow
#property indicator_color2 Red
 
//---- buffers
double aa[],bb[],cc[2];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   IndicatorBuffers(3);
   SetIndexBuffer(1,bb);
   SetIndexBuffer(0,aa);
   SetIndexBuffer(2,cc);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int i;
   double p,q;
//----
   for (i=Bars-2;i>=0;i--)
     {
       p=iMA(NULL,0,13,8,MODE_SMMA,PRICE_MEDIAN,i);
       q=iMA(NULL,0,60,8,MODE_SMMA,PRICE_MEDIAN,i);
       cc[0]=p;
       cc[1]=q;
       aa[i]=cc[ArrayMaximum(cc)];
       bb[i]=cc[ArrayMinimum(cc)];
     }
   return(0);
  }
//+------------------------------------------------------------------+

[Rashid Umarov]

I think you want a something like this:

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Yellow
#property indicator_color2 Red
 
//---- buffers
double aa[],bb[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   SetIndexBuffer(1,bb);
   SetIndexBuffer(0,aa);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int i;
   double p,q;
//----
   for (i=Bars-60;i>=0;i--)
     {
       p=iMA(NULL,0,13,8,MODE_SMMA,PRICE_MEDIAN,i);
       q=iMA(NULL,0,60,8,MODE_SMMA,PRICE_MEDIAN,i);
       aa[i]=MathMax(p,q);
       bb[i]=MathMin(p,q);
     }
   return(0);
  }

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谢谢 Rosh 老师！

用 MathMin( ) 的方法我已经试过，是个有效的办法，但是如果我需要在 5 个或以上的数值中取最大或最小值，用 MathMax( ) 似乎很麻烦，如果用 ArrayMaximum( ),会出现以上的问题（只能显示ArrayMinimum( ) 的结果）。请问有什么解决的办法呢？

谢谢！