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refactor: Optimized for incremental calculation

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This commit is contained in:
Toh4iem9
2025-12-17 20:07:38 +01:00
parent b47dd02fb0
commit 964110ea95
1 changed files with 11 additions and 21 deletions
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Indicators/MyIndicators/LinearRegression_Pro.mq5
+11 -21
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@@ -1,11 +1,9 @@
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
//| LinearRegression_Pro.mq5 | //| LinearRegression_Pro.mq5 |
//| Copyright 2025, xxxxxxxx| //| Copyright 2025, xxxxxxxx|
//| |
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
#property copyright "Copyright 2025, xxxxxxxx" #property copyright "Copyright 2025, xxxxxxxx"
#property link "" #property version "2.10" // Optimized for incremental calculation
#property version "2.00"
#property description "Professional, manually calculated Linear Regression Channel with" #property description "Professional, manually calculated Linear Regression Channel with"
#property description "selectable price source (Standard and Heikin Ashi)." #property description "selectable price source (Standard and Heikin Ashi)."
@@ -98,7 +96,7 @@ void OnDeinit(const int reason)
//| Linear Regression Channel calculation function. | //| Linear Regression Channel calculation function. |
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
int OnCalculate(const int rates_total, int OnCalculate(const int rates_total,
const int prev_calculated, const int prev_calculated, // <--- Now used!
const datetime &time[], const datetime &time[],
const double &open[], const double &open[],
const double &high[], const double &high[],
@@ -108,25 +106,17 @@ int OnCalculate(const int rates_total,
const long &volume[], const long &volume[],
const int &spread[]) const int &spread[])
{ {
if(rates_total < InpRegressionPeriod || CheckPointer(g_calculator) == POINTER_INVALID) if(CheckPointer(g_calculator) == POINTER_INVALID)
return(0); return 0;
if(time[rates_total - 1] > g_last_update_time) ENUM_APPLIED_PRICE price_type;
{ if(InpSourcePrice <= PRICE_HA_CLOSE)
ArrayInitialize(BufferUpper, EMPTY_VALUE); price_type = (ENUM_APPLIED_PRICE)(-(int)InpSourcePrice);
ArrayInitialize(BufferLower, EMPTY_VALUE); else
ArrayInitialize(BufferMiddle, EMPTY_VALUE); price_type = (ENUM_APPLIED_PRICE)InpSourcePrice;
ENUM_APPLIED_PRICE price_type; //--- Delegate calculation with prev_calculated optimization
if(InpSourcePrice <= PRICE_HA_CLOSE) g_calculator.Calculate(rates_total, prev_calculated, open, high, low, close, price_type, BufferMiddle, BufferUpper, BufferLower);
price_type = (ENUM_APPLIED_PRICE)(-(int)InpSourcePrice);
else
price_type = (ENUM_APPLIED_PRICE)InpSourcePrice;
g_calculator.Calculate(rates_total, open, high, low, close, price_type, BufferMiddle, BufferUpper, BufferLower);
g_last_update_time = time[rates_total - 1];
}
return(rates_total); return(rates_total);
} }