とても便利なenum入力
バックテストや最適化などをして色々とパラメーターを触っていると、移動平均線の種類とか、MODEの値とか、あれ？ここ数値なんだっけ？ってなることが多いです。
ちなみに、こういうやつね、この数字をいつも調べながら何かしています。
年のせいかな(´・ω・｀)
| ID | Value | Description |
|---|---|---|
| MODE_SMA | 0 | Simple averaging |
| MODE_EMA | 1 | Exponential averaging |
| MODE_SMMA | 2 | Smoothed averaging |
| MODE_LWMA | 3 | Linear-weighted averaging |
さすがに毎回調べるのが面倒になってきたので、MQLに埋め込んでしまいましょう！
実装する人も楽ちんだし、使う人も入力値に迷うことがなくなるので結構便利になるはずだと思います。
実装方法
時間軸をenumにしたコード
enum timeFrame_List{Current_timeFrame=0,M1 =1,M5 =5,M15=15,M30=30,H1 =60,H4 =240,D1 =1440,W1 =10080,MN =43200};
input timeFrame_List TimeFrame = M5;
移動平均線の種類をenumにしたコード
enum maMethod_List{SMA=MODE_SMA,EMA=MODE_EMA,SMMA=MODE_SMMA,LWMA=MODE_LWMA};
input maMethod_List MaMethods = EMA;
実用例として、EMA-Crossover_Signalを少し変更したコードをサンプルに使います。
MQLのEAやインジケーターからメール通知を行う方法と
MQLのEAやインジケーターからスマホにPUSH通知を行う方法でも使った同じコードですｗ
//+------------------------------------------------------------------+
//| EMA-Crossover_Signal.mq4 |
//| Copyright ｩ 2005, Jason Robinson (jnrtrading) |
//| http://www.jnrtading.co.uk |
//+------------------------------------------------------------------+
/*
+------------------------------------------------------------------+
| Allows you to enter two ema periods and it will then show you at |
| Which point they crossed over. It is more usful on the shorter |
| periods that get obscured by the bars / candlesticks and when |
| the zoom level is out. Also allows you then to remove the emas |
| from the chart. (emas are initially set at 5 and 6) |
+------------------------------------------------------------------+
*/
#property copyright "Copyright ｩ 2005, Jason Robinson (jnrtrading)"
#property link "http://www.jnrtrading.co.uk"
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 SeaGreen
#property indicator_color2 Red
double CrossUp[];
double CrossDown[];
extern int FasterEMA = 4;
extern int SlowerEMA = 8;
extern bool SoundON=true;
double alertTag;
double control=2147483647;
extern bool EnablePushNotification=true;
extern bool EnableMailNotification=true;
int MaMethodId;
enum maMethod_List{SMA=MODE_SMA,EMA=MODE_EMA,SMMA=MODE_SMMA,LWMA=MODE_LWMA};
input maMethod_List MaMethods = EMA;
input string MetaQuotesID ="FF7EE8B";
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle(0, DRAW_ARROW, EMPTY,3);
SetIndexArrow(0, 233);
SetIndexBuffer(0, CrossUp);
SetIndexStyle(1, DRAW_ARROW, EMPTY,3);
SetIndexArrow(1, 234);
SetIndexBuffer(1, CrossDown);
MaMethodId=MaMethods;
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start() {
int limit, i, counter;
double fasterEMAnow, slowerEMAnow, fasterEMAprevious, slowerEMAprevious, fasterEMAafter, slowerEMAafter;
double Range, AvgRange;
int counted_bars=IndicatorCounted();
//---- check for possible errors
if(counted_bars<0) return(-1);
//---- last counted bar will be recounted
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;
for(i = 0; i <= limit; i++) {
counter=i;
Range=0;
AvgRange=0;
for (counter=i ;counter<=i+9;counter++)
{
AvgRange=AvgRange+MathAbs(High[counter]-Low[counter]);
}
Range=AvgRange/10;
fasterEMAnow = iMA(NULL, 0, FasterEMA, 0, MaMethodId, PRICE_CLOSE, i);
fasterEMAprevious = iMA(NULL, 0, FasterEMA, 0, MaMethodId, PRICE_CLOSE, i+1);
fasterEMAafter = iMA(NULL, 0, FasterEMA, 0, MaMethodId, PRICE_CLOSE, i-1);
slowerEMAnow = iMA(NULL, 0, SlowerEMA, 0, MaMethodId, PRICE_CLOSE, i);
slowerEMAprevious = iMA(NULL, 0, SlowerEMA, 0, MaMethodId, PRICE_CLOSE, i+1);
slowerEMAafter = iMA(NULL, 0, SlowerEMA, 0, MaMethodId, PRICE_CLOSE, i-1);
if ((fasterEMAnow > slowerEMAnow) && (fasterEMAprevious < slowerEMAprevious) && (fasterEMAafter > slowerEMAafter)) {
CrossUp[i] = Low[i] - Range*0.5;
}
else if ((fasterEMAnow < slowerEMAnow) && (fasterEMAprevious > slowerEMAprevious) && (fasterEMAafter < slowerEMAafter)) {
CrossDown[i] = High[i] + Range*0.5;
}
string msg="";
if (i==1 && CrossUp[i] > CrossDown[i] && alertTag!=Time[0])
{
switch(MaMethodId)
{
case MODE_SMA:msg= "SMA "; break;
case MODE_EMA:msg= "EMA "; break;
case MODE_SMMA:msg="SMMA ";break;
case MODE_LWMA:msg="LWMA ";break;
}
msg+="Cross Trend going Down on ";
if(SoundON==true)
{
Alert(msg,Symbol()," ",Period());
alertTag = Time[0];
}
if(EnableMailNotification==true)
{
MailNotification(msg,msg+Symbol()+Period());
alertTag = Time[0];
}
if(EnablePushNotification==true)
{
PushNotification(msg+Symbol()+Period());
alertTag = Time[0];
} }
if (i==1 && CrossUp[i] < CrossDown[i] && alertTag!=Time[0])
{
switch(MaMethodId)
{
case MODE_SMA:msg= "SMA "; break;
case MODE_EMA:msg= "EMA "; break;
case MODE_SMMA:msg="SMMA ";break;
case MODE_LWMA:msg="LWMA ";break;
}
msg+="Cross Trend going Up on ";
if(SoundON==true)
{
Alert(msg,Symbol()," ",Period());
alertTag = Time[0];
}
if(EnableMailNotification==true)
{
MailNotification(msg,msg+Symbol()+Period());
alertTag = Time[0];
}
if(EnablePushNotification==true)
{
PushNotification(msg+Symbol()+Period());
alertTag = Time[0];
}
}
}
return(0);
}
bool PushNotification(string msg)
{
return SendNotification(msg);
}
bool MailNotification(string subject,string body)
{
return SendMail(subject,body);
}
