LinearRegression.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/ContainersFwd.h"
#include "Math/Vector2D.h"
#include "Misc/LinearFunction.h"
 
namespace UE::TimeManagement
{
struct FLinearRegressionArgs
{
    double SumX = 0.0;
    double SumY = 0.0;
    double SumXxY = 0.0;
    double SumOfSquaredXes = 0.0;
    SIZE_T Num = 0;
};
    
FLinearRegressionArgs ComputeLinearRegressionInputArgs(const TConstArrayView<FVector2d>& InBuffer);
 
bool ComputeLinearRegressionSlopeAndOffset(
    const FLinearRegressionArgs& InArgs,
    double& OutSlope, double& OutOffset
    );
    
inline bool ComputeLinearRegressionSlopeAndOffset(const FLinearRegressionArgs& InArgs, FLinearFunction& OutFunction)
{
    return ComputeLinearRegressionSlopeAndOffset(InArgs, OutFunction.Slope, OutFunction.Offset);
}
}