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Code Tweak
https://www.stevehopwoodforex.com/phpBB3/viewtopic.php?t=1315		 Page 1 of 1
Author:  unimak [ Tue Dec 18, 2012 1:29 pm ]
Post subject:  Code Tweak
I have this lovely ema crossover code which works really nice , i just want to change it a little , so need to some help . right now it is a simple ema cross , so 5 ema over 10 ema , we get a signal ,price is taken at close .

ALL i want is the second ema should be derived from the first ema which means , if the first ema is 10 then the second ema should be calculated as ema 10 of the first ema 10 .

i want your help to implement this bit of tweak to the code .


=======================
//+------------------------------------------------------------------+
//| EMA-Crossover_Signal.mq4 |
//| Copyright © 2005-07, 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 © 2005-07, 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 = 5;
extern int SlowerEMA = 8;
extern bool SoundON=true;
double alertTag;
double control=2147483647;

//+------------------------------------------------------------------+
//| 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);
//----
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, MODE_EMA, PRICE_CLOSE, i);
fasterEMAprevious = iMA(NULL, 0, FasterEMA, 0, MODE_EMA, PRICE_CLOSE, i+1);
fasterEMAafter = iMA(NULL, 0, FasterEMA, 0, MODE_EMA, PRICE_CLOSE, i-1);

slowerEMAnow = iMA(NULL, 0, SlowerEMA, 0, MODE_EMA, PRICE_CLOSE, i);
slowerEMAprevious = iMA(NULL, 0, SlowerEMA, 0, MODE_EMA, PRICE_CLOSE, i+1);
slowerEMAafter = iMA(NULL, 0, SlowerEMA, 0, MODE_EMA, PRICE_CLOSE, i-1);

if ((fasterEMAnow > slowerEMAnow) && (fasterEMAprevious < slowerEMAprevious) && (fasterEMAafter > slowerEMAafter)) {
CrossUp = Low - Range*0.5;
}
else if ((fasterEMAnow < slowerEMAnow) && (fasterEMAprevious > slowerEMAprevious) && (fasterEMAafter < slowerEMAafter)) {
CrossDown = High + Range*0.5;
}
if (SoundON==true && i==1 && CrossUp > CrossDown && alertTag!=Time[0]){
Alert("EMA Cross Trend going Down on ",Symbol()," ",Period());
alertTag = Time[0];
}
if (SoundON==true && i==1 && CrossUp < CrossDown && alertTag!=Time[0]){
Alert("EMA Cross Trend going Up on ",Symbol()," ",Period());
alertTag = Time[0];
}
}
return(0);
}
=============================================
Author:  fxdaytrader [ Tue Dec 18, 2012 9:35 pm ]
Post subject:  Re: Code Tweak
pls see attached
MAofMA_Crossover_Signals.mq4
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