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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 |
//| Copyright 2025, xxxxxxxx|
//| |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, xxxxxxxx"
#property link ""
#property version "2.00"
#property version "2.10" // Optimized for incremental calculation
#property description "Professional, manually calculated Linear Regression Channel with"
#property description "selectable price source (Standard and Heikin Ashi)."
@@ -98,7 +96,7 @@ void OnDeinit(const int reason)
//| Linear Regression Channel calculation function. |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated,
const int prev_calculated, // <--- Now used!
const datetime &time[],
const double &open[],
const double &high[],
@@ -108,25 +106,17 @@ int OnCalculate(const int rates_total,
const long &volume[],
const int &spread[])
{
if(rates_total < InpRegressionPeriod || CheckPointer(g_calculator) == POINTER_INVALID)
return(0);
if(CheckPointer(g_calculator) == POINTER_INVALID)
return 0;
if(time[rates_total - 1] > g_last_update_time)
{
ArrayInitialize(BufferUpper, EMPTY_VALUE);
ArrayInitialize(BufferLower, EMPTY_VALUE);
ArrayInitialize(BufferMiddle, EMPTY_VALUE);
ENUM_APPLIED_PRICE price_type;
if(InpSourcePrice <= PRICE_HA_CLOSE)
price_type = (ENUM_APPLIED_PRICE)(-(int)InpSourcePrice);
else
price_type = (ENUM_APPLIED_PRICE)InpSourcePrice;
ENUM_APPLIED_PRICE price_type;
if(InpSourcePrice <= PRICE_HA_CLOSE)
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];
}
//--- Delegate calculation with prev_calculated optimization
g_calculator.Calculate(rates_total, prev_calculated, open, high, low, close, price_type, BufferMiddle, BufferUpper, BufferLower);
return(rates_total);
}