Core example: Empirical random variables use.

Example program illustrating use of ns3::EmpiricalRandomVariable. More...

Functions
void	PrintStatsLine (const double value, const long count, const long n, const long sum)
	Prints a stat line. More...
void	PrintSummary (long sum, long n, double weighted, double expected)
	Prints the summary. More...
void	RunBothModes (std::string mode, Ptr< EmpiricalRandomVariable > erv, long n)
	Sample the random variable. More...
void	RunSingleSample (std::string mode, Ptr< EmpiricalRandomVariable > erv)
	Sample the random variable only once. More...

Detailed Description

Example program illustrating use of ns3::EmpiricalRandomVariable.

This example illustrates

• Creating an EmpiricalRandomVariable instance.
• Switching the mode.
• Using the sampling mode
• Switching modes
• Using the interpolating mode

Consult the ns-3 manual for more information about the use of the random number generator

Function Documentation

PrintStatsLine()

void PrintStatsLine	(	const double	value,
		const long	count,
		const long	n,
		const long	sum
	)

Prints a stat line.

Parameters

value	The value to print.
count	The number of times that value has been sampled.
n	The total number of random values sampled.
sum	The sum of the counts seen up to value, used to show the CDF for value.

Definition at line 89 of file empirical-random-variable-example.cc.

Referenced by RunBothModes().

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PrintSummary()

void PrintSummary	(	long	sum,
		long	n,
		double	weighted,
		double	expected
	)

Prints the summary.

Parameters

sum	The number of sampled values.
n	The total number of random values to be drawn.
weighted	The average of the sample.
expected	The expected average of the sample.

Definition at line 107 of file empirical-random-variable-example.cc.

Referenced by RunBothModes().

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RunBothModes()

void RunBothModes	(	std::string	mode,
		Ptr< EmpiricalRandomVariable >	erv,
		long	n
	)

Sample the random variable.

Parameters

mode	Rng mode (Normal or Antithetic).
erv	The empirical random variable.
n	Number of samples to draw.

Definition at line 129 of file empirical-random-variable-example.cc.

References ns3::Histogram::AddValue(), ns3::Histogram::GetBinCount(), ns3::Histogram::GetBinStart(), ns3::Histogram::GetBinWidth(), ns3::Histogram::GetNBins(), PrintStatsLine(), PrintSummary(), and two-ray-to-three-gpp-ch-calibration::start.

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RunSingleSample()

void RunSingleSample	(	std::string	mode,
		Ptr< EmpiricalRandomVariable >	erv
	)

Sample the random variable only once.

Parameters

mode	Rng mode (Normal or Antithetic).
erv	The empirical random variable.

Definition at line 60 of file empirical-random-variable-example.cc.