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refactor: Upgraded with 3-digit Gamma precision and chronological array safeguards

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This commit is contained in:
Toh4iem9
2026-06-30 14:06:26 +02:00
parent 9ba33d914a
commit 5bd19f8842
1 changed files with 17 additions and 10 deletions
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Indicators/MyIndicators/Authors/Ehlers/1_Smoothers/Laguerre_Filter_Pro.mq5
+17 -10
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@@ -1,9 +1,9 @@
//+------------------------------------------------------------------+
//| Laguerre_Filter_Pro.mq5|
//| Copyright 2025, xxxxxxxx|
//| Copyright 2026, xxxxxxxx|
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, xxxxxxxx"
#property version "1.20" // Optimized for incremental calculation
#property copyright "Copyright 2026, xxxxxxxx"
#property version "1.30" // Upgraded with 3-digit Gamma precision and chronological array safeguards
#property description "John Ehlers' Laguerre Filter as a low-lag moving average."
#property description "Includes an optional FIR filter for comparison."
@@ -26,9 +26,9 @@
#include <MyIncludes\Laguerre_Filter_Calculator.mqh>
//--- Input Parameters ---
input double InpGamma = 0.5;
input ENUM_APPLIED_PRICE_HA_ALL InpSourcePrice = PRICE_CLOSE_STD;
input bool InpShowFIR = false;
input double InpGamma = 0.5; // Laguerre Gamma (e.g. 0.236, 0.382, 0.618)
input ENUM_APPLIED_PRICE_HA_ALL InpSourcePrice = PRICE_CLOSE_STD; // Price Source
input bool InpShowFIR = false; // Show FIR Filter Comparison?
//--- Indicator Buffers ---
double BufferFilter[];
@@ -46,15 +46,16 @@ int OnInit()
ArraySetAsSeries(BufferFIR, false);
PlotIndexSetDouble(1, PLOT_EMPTY_VALUE, EMPTY_VALUE);
//--- Factory Logic & dynamic short name formatting updated to 3 decimal places (%.3f) to support Fibonacci ratios
if(InpSourcePrice <= PRICE_HA_CLOSE)
{
g_calculator = new CLaguerreFilterCalculator_HA();
IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("Laguerre Filter HA(%.2f)", InpGamma));
IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("Laguerre Filter HA(%.3f)", InpGamma));
}
else
{
g_calculator = new CLaguerreFilterCalculator();
IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("Laguerre Filter(%.2f)", InpGamma));
IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("Laguerre Filter(%.3f)", InpGamma));
}
if(CheckPointer(g_calculator) == POINTER_INVALID || !g_calculator.Init(InpGamma, SOURCE_PRICE))
@@ -81,7 +82,7 @@ void OnDeinit(const int reason)
//| Custom indicator calculation function |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated, // <--- Now used!
const int prev_calculated,
const datetime &time[],
const double &open[],
const double &high[],
@@ -94,6 +95,13 @@ int OnCalculate(const int rates_total,
if(CheckPointer(g_calculator) == POINTER_INVALID)
return 0;
//--- Force strict chronological indexing for state-safety on input price arrays
ArraySetAsSeries(time, false);
ArraySetAsSeries(open, false);
ArraySetAsSeries(high, false);
ArraySetAsSeries(low, false);
ArraySetAsSeries(close, false);
ENUM_APPLIED_PRICE price_type;
if(InpSourcePrice <= PRICE_HA_CLOSE)
price_type = (ENUM_APPLIED_PRICE)(-(int)InpSourcePrice);
@@ -114,4 +122,3 @@ int OnCalculate(const int rates_total,
return(rates_total);
}
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+