CachedLinearRegressionSums.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "LinearRegression.h"
#include "ModuloCircularBuffer.h"
 
namespace UE::TimeManagement
{
struct FCachedLinearRegressionSums
{
    TModuloCircularBuffer<FVector2d> Samples;
 
    FLinearRegressionArgs CachedSums;
 
    explicit FCachedLinearRegressionSums(SIZE_T InNumSamples) : Samples(InNumSamples) {}
 
    bool IsEmpty() const
    {
        return Samples.IsEmpty();
    }
};
 
void AddSampleAndUpdateSums(const FVector2d& InSample, TModuloCircularBuffer<FVector2d>& InSamples, FLinearRegressionArgs& InCachedArguments);
    
inline void AddSampleAndUpdateSums(const FVector2d& InSample, FCachedLinearRegressionSums& InCachedSums)
{
    AddSampleAndUpdateSums(InSample, InCachedSums.Samples, InCachedSums.CachedSums);
}
}