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ns3::SequentialRandomVariable Class Reference

The Random Number Generator (RNG) that returns a sequential list of values. More...

#include <random-variable-stream.h>

+ Inheritance diagram for ns3::SequentialRandomVariable:
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Public Member Functions

 SequentialRandomVariable ()
 Creates a sequential RNG with the default values for the sequence parameters.
uint32_t GetConsecutive (void) const
 Returns the number of times each member of the sequence is repeated.
Ptr< RandomVariableStreamGetIncrement (void) const
 Returns the random variable increment for the sequence.
virtual uint32_t GetInteger (void)
 Returns an integer cast of the next value in the sequence returned by this RNG stream.
double GetMax (void) const
 Returns one more than the last value of the sequence.
double GetMin (void) const
 Returns the first value of the sequence.
virtual double GetValue (void)
 Returns the next value in the sequence returned by this RNG stream.
- Public Member Functions inherited from ns3::RandomVariableStream
 RandomVariableStream ()
virtual ~RandomVariableStream ()
int64_t GetStream (void) const
 Returns the stream number for this RNG stream.
bool IsAntithetic (void) const
 Returns true if antithetic values should be generated.
void SetAntithetic (bool isAntithetic)
 Specifies whether antithetic values should be generated.
void SetStream (int64_t stream)
 Specifies the stream number for this RNG stream.
- Public Member Functions inherited from ns3::Object
 Object ()
virtual ~Object ()
void AggregateObject (Ptr< Object > other)
void Dispose (void)
AggregateIterator GetAggregateIterator (void) const
virtual TypeId GetInstanceTypeId (void) const
template<typename T >
Ptr< T > GetObject (void) const
template<typename T >
Ptr< T > GetObject (TypeId tid) const
void Start (void)
- Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
 SimpleRefCount ()
 SimpleRefCount (const SimpleRefCount &o)
uint32_t GetReferenceCount (void) const
SimpleRefCountoperator= (const SimpleRefCount &o)
void Ref (void) const
void Unref (void) const
- Public Member Functions inherited from ns3::ObjectBase
virtual ~ObjectBase ()
void GetAttribute (std::string name, AttributeValue &value) const
bool GetAttributeFailSafe (std::string name, AttributeValue &attribute) const
void SetAttribute (std::string name, const AttributeValue &value)
bool SetAttributeFailSafe (std::string name, const AttributeValue &value)
bool TraceConnect (std::string name, std::string context, const CallbackBase &cb)
bool TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
bool TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
bool TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)

Static Public Member Functions

static TypeId GetTypeId (void)
 This method returns the TypeId associated to ns3::SequentialRandomVariable.

Private Attributes

uint32_t m_consecutive
 The number of times each member of the sequence is repeated.
double m_current
 The current sequence value.
uint32_t m_currentConsecutive
 The number of times the sequence has been repeated.
Ptr< RandomVariableStreamm_increment
 The sequence random variable increment.
bool m_isCurrentSet
 Indicates if the current sequence value has been set.
double m_max
 One more than the last value of the sequence.
double m_min
 The first value of the sequence.

Additional Inherited Members

- Protected Member Functions inherited from ns3::RandomVariableStream
RngStreamPeek (void) const
 Returns a pointer to the underlying RNG stream.

Detailed Description

The Random Number Generator (RNG) that returns a sequential list of values.

Class SequentialRandomVariable defines a random number generator that returns a sequence of values. The sequence monotonically increases for a period, then wraps around to the low value and begins monotonically increasing again.

Definition at line 327 of file random-variable-stream.h.

Constructor & Destructor Documentation

ns3::SequentialRandomVariable::SequentialRandomVariable ( )

Creates a sequential RNG with the default values for the sequence parameters.

Definition at line 264 of file random-variable-stream.cc.

Member Function Documentation

uint32_t ns3::SequentialRandomVariable::GetConsecutive ( void  ) const

Returns the number of times each member of the sequence is repeated.

Returns
The number of times each member of the sequence is repeated.

Definition at line 293 of file random-variable-stream.cc.

References m_consecutive.

Ptr< RandomVariableStream > ns3::SequentialRandomVariable::GetIncrement ( void  ) const

Returns the random variable increment for the sequence.

Returns
The random variable increment for the sequence.

Definition at line 287 of file random-variable-stream.cc.

References m_increment.

uint32_t ns3::SequentialRandomVariable::GetInteger ( void  )
virtual

Returns an integer cast of the next value in the sequence returned by this RNG stream.

Returns
Integer cast of the next value in the sequence returned by this RNG stream.

Implements ns3::RandomVariableStream.

Definition at line 324 of file random-variable-stream.cc.

References GetValue().

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double ns3::SequentialRandomVariable::GetMax ( void  ) const

Returns one more than the last value of the sequence.

Returns
One more than the last value of the sequence.

Definition at line 281 of file random-variable-stream.cc.

References m_max.

double ns3::SequentialRandomVariable::GetMin ( void  ) const

Returns the first value of the sequence.

Returns
The first value of the sequence.

Definition at line 275 of file random-variable-stream.cc.

References m_min.

TypeId ns3::SequentialRandomVariable::GetTypeId ( void  )
static

This method returns the TypeId associated to ns3::SequentialRandomVariable.

This object is accessible through the following paths with Config::Set and Config::Connect:

  • /NodeList/[i]/$ns3::MobilityModel/$ns3::GaussMarkovMobilityModel/MeanDirection/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::GaussMarkovMobilityModel/MeanPitch/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::GaussMarkovMobilityModel/MeanVelocity/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomDirection2dMobilityModel/Pause/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomDirection2dMobilityModel/Speed/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomWalk2dMobilityModel/Direction/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomWalk2dMobilityModel/Speed/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomWaypointMobilityModel/Pause/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomWaypointMobilityModel/PositionAllocator/$ns3::RandomBoxPositionAllocator/X/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomWaypointMobilityModel/PositionAllocator/$ns3::RandomBoxPositionAllocator/Y/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomWaypointMobilityModel/PositionAllocator/$ns3::RandomBoxPositionAllocator/Z/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomWaypointMobilityModel/PositionAllocator/$ns3::RandomDiscPositionAllocator/Rho/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomWaypointMobilityModel/PositionAllocator/$ns3::RandomDiscPositionAllocator/Theta/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomWaypointMobilityModel/PositionAllocator/$ns3::RandomRectanglePositionAllocator/X/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomWaypointMobilityModel/PositionAllocator/$ns3::RandomRectanglePositionAllocator/Y/$ns3::SequentialRandomVariable
  • /NodeList/[i]/$ns3::MobilityModel/$ns3::RandomWaypointMobilityModel/Speed/$ns3::SequentialRandomVariable
  • /NodeList/[i]/ApplicationList/[i]/$ns3::OnOffApplication/OffTime/$ns3::SequentialRandomVariable
  • /NodeList/[i]/ApplicationList/[i]/$ns3::OnOffApplication/OnTime/$ns3::SequentialRandomVariable
  • /NodeList/[i]/DeviceList/[i]/$ns3::CsmaNetDevice/ReceiveErrorModel/$ns3::RateErrorModel/RanVar/$ns3::SequentialRandomVariable
  • /NodeList/[i]/DeviceList/[i]/$ns3::PointToPointNetDevice/ReceiveErrorModel/$ns3::RateErrorModel/RanVar/$ns3::SequentialRandomVariable
  • /NodeList/[i]/DeviceList/[i]/$ns3::SimpleNetDevice/ReceiveErrorModel/$ns3::RateErrorModel/RanVar/$ns3::SequentialRandomVariable
  • /NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Channel/$ns3::YansWifiChannel/PropagationDelayModel/$ns3::RandomPropagationDelayModel/Variable/$ns3::SequentialRandomVariable
  • /NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Channel/$ns3::YansWifiChannel/PropagationLossModel/$ns3::RandomPropagationLossModel/Variable/$ns3::SequentialRandomVariable

Attributes defined for this type:

  • Min: The first value of the sequence.
    • Set with class: ns3::DoubleValue
    • Underlying type: double -1.79769e+308:1.79769e+308
    • Initial value: 0
    • Flags: construct write read
  • Max: One more than the last value of the sequence.
    • Set with class: ns3::DoubleValue
    • Underlying type: double -1.79769e+308:1.79769e+308
    • Initial value: 0
    • Flags: construct write read
  • Increment: The sequence random variable increment.
  • Consecutive: The number of times each member of the sequence is repeated.

Attributes defined in parent class ns3::RandomVariableStream:

  • Stream: The stream number for this RNG stream. -1 means "allocate a stream automatically". Note that if -1 is set, Get will return -1 so that it is not possible to know which value was automatically allocated.
    • Set with class: ns3::IntegerValue
    • Underlying type: int64_t -9223372036854775808:9223372036854775807
    • Initial value: -1
    • Flags: construct write read
  • Antithetic: Set this RNG stream to generate antithetic values
    • Set with class: BooleanValue
    • Underlying type: bool
    • Initial value: false
    • Flags: construct write read

No TraceSources defined for this type.

Reimplemented from ns3::RandomVariableStream.

Definition at line 240 of file random-variable-stream.cc.

References m_consecutive, m_increment, m_max, m_min, and ns3::TypeId::SetParent().

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double ns3::SequentialRandomVariable::GetValue ( void  )
virtual

Returns the next value in the sequence returned by this RNG stream.

Returns
The next value in the sequence returned by this RNG stream.

The following four parameters define the sequence. For example,

  • m_min = 0 (First value of the sequence)
  • m_max = 5 (One more than the last value of the sequence)
  • m_increment = 1 (Random variable increment between sequence values)
  • m_consecutive = 2 (Number of times each member of the sequence is repeated)

creates a RNG that has the sequence 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 0, 0 ...

Implements ns3::RandomVariableStream.

Definition at line 299 of file random-variable-stream.cc.

References ns3::RandomVariableStream::GetValue(), m_consecutive, m_current, m_currentConsecutive, m_increment, m_isCurrentSet, m_max, and m_min.

Referenced by RandomVariableStreamSequentialTestCase::DoRun(), and GetInteger().

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Member Data Documentation

uint32_t ns3::SequentialRandomVariable::m_consecutive
private

The number of times each member of the sequence is repeated.

Definition at line 393 of file random-variable-stream.h.

Referenced by GetConsecutive(), GetTypeId(), and GetValue().

double ns3::SequentialRandomVariable::m_current
private

The current sequence value.

Definition at line 396 of file random-variable-stream.h.

Referenced by GetValue().

uint32_t ns3::SequentialRandomVariable::m_currentConsecutive
private

The number of times the sequence has been repeated.

Definition at line 399 of file random-variable-stream.h.

Referenced by GetValue().

Ptr<RandomVariableStream> ns3::SequentialRandomVariable::m_increment
private

The sequence random variable increment.

Definition at line 390 of file random-variable-stream.h.

Referenced by GetIncrement(), GetTypeId(), and GetValue().

bool ns3::SequentialRandomVariable::m_isCurrentSet
private

Indicates if the current sequence value has been set.

Definition at line 402 of file random-variable-stream.h.

Referenced by GetValue().

double ns3::SequentialRandomVariable::m_max
private

One more than the last value of the sequence.

Definition at line 387 of file random-variable-stream.h.

Referenced by GetMax(), GetTypeId(), and GetValue().

double ns3::SequentialRandomVariable::m_min
private

The first value of the sequence.

Definition at line 384 of file random-variable-stream.h.

Referenced by GetMin(), GetTypeId(), and GetValue().


The documentation for this class was generated from the following files: