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xMQL4/Packed/XAUUSD-15M/MQL4/Indicators/x-saherelm.ma.mq4
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2024-01-25 04:03:36 +03:30

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///////////////////////////////////////////////////////
//
// SaherElm IT Center MA Indicator
// ---------------------------------------------
// saherelm implementation of above indicator ...
// this indicator uses two ma line:
// - fast ma;
// - slow ma;
//
// Maintainer:
// ------------
// Hadi Khazaee Asl (hadi_khazaee_asl@yahoo.com)
//
//////////////////////////////////////////////////////
//
// Global Properties ...
#property copyright "Copyright 2023, SaherElm IT Center"
#property link "https://saherelm.ir"
#property version "1.00"
#property description "SaherElm MA Indicator"
#property strict
//
// START Inputs ...
//
//
// Fast MA ...
input int maLength = 20; // MA Length
input int maShift = 0; // MA Shift
input ENUM_MA_METHOD maMethod = MODE_EMA; // MA Method
input ENUM_APPLIED_PRICE maAppliedPrice = PRICE_CLOSE; // MA Applied Price
//
// START Global Definitions: Variables, Properties and etc ...
//
#property indicator_chart_window
//
#property indicator_buffers 1
//
#property indicator_plots 1
//
// Start Define Indicator Buffer Styles ...
//
//
// Fast Ma Buffer ...
#property indicator_label1 "Ma"
#property indicator_type1 DRAW_LINE
#property indicator_color1 clrYellow
#property indicator_style1 STYLE_DOT
#property indicator_width1 2
//
// End Define Indicator Buffer Styles ...
//
//
// Buffers ...
#define maBufferIndex 0
double maBuffer[];
//
// END Global Definitions: Variables, Properties and etc ...
//
//
// Start Event Handlers ...
//
//
// Initialization ...
int OnInit() {
//
// Initialize what we want ...
if (maLength <= 0) {
return INIT_PARAMETERS_INCORRECT;
}
//
// Start Set Index Buffers ...
//
//
// Ma ...
SetIndexBuffer(maBufferIndex, maBuffer);
SetIndexDrawBegin(maBufferIndex, maLength + 1);
//
// End Set Index Buffers ...
//
//
return INIT_SUCCEEDED;
}
//
// Calculating what we want ...
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[]
) {
//
// this counts Available Bars ...
int limit;
//
// because in some cases we may have more than one input for
// calculation and we must prevent any calculation
// untill we pass the biggest input length, here we get max Input length
// and then wait until pass it ...
int maxLength = MathMax(0, maLength);
//
// input variable, we return 0 means nothing passed ...
if (rates_total < maxLength) {
return 0;
}
//
// found which candles calculated before ...
limit = (prev_calculated == 0) ? rates_total - maxLength - 1 : rates_total - prev_calculated + 1;
//
// this is the main loop of calculations, for each bar index ...
for (int i = limit - 1; i >= 0; i--) {
//
// Start Calculation here ...
// i is bar_index ...
//
// Calculate Ma ...
CalculateMa(i);
}
//
return rates_total;
}
//
// END Event Handlers ...
//
//
// START Functions ...
//
//
// Calculating Ma ...
void CalculateMa(
const int &bar_index
) {
//
// Calculating Fast Ma ...
double ma = iMA(
_Symbol,
_Period,
maLength,
maShift,
maMethod,
maAppliedPrice,
bar_index
);
//
maBuffer[bar_index] = ma;
}
//
// END Functions ...
//