Package jline.api.mam

Class Map_sample.MapSampler

java.lang.Object

jline.api.mam.Map_sample.MapSampler

Enclosing class:

Map_sample

public static final class Map_sample.MapSampler
extends Object

Stateful single-event MAP sampler that carries the modulating phase across calls.

Successive calls to next(Random) continue the MAP's underlying CTMC from the phase reached at the previous event, reproducing the process autocorrelation. This differs from repeatedly invoking Map_sample.map_sample(Matrix, Matrix, long, Random) with n=1, which re-initialises the phase from the stationary vector map_pie on every call and therefore yields an i.i.d. (renewal) sequence with the correct marginal but zero autocorrelation. Use this sampler when a MAP/MMPP2/RAP is an arrival or service process whose burstiness must be preserved across events (e.g. an M/MAP/1 queue); the renewal path is correct only for phase-type renewal distributions whose D1 restarts from a fixed entry vector.

The phase persists across idle periods (it is only advanced when next(Random) is called), matching the MAP/MAP/1 convention in which the service process is frozen while the server is idle.

Constructor Summary

Constructors

Constructor	Description
MapSampler(Matrix D0, Matrix D1)

Method Summary

Modifier and Type	Method	Description
double	next(Random random)	Draws one inter-event time, advancing (and retaining) the modulating phase.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MapSampler

public MapSampler(Matrix D0,
 Matrix D1)

Method Details

next

public double next(Random random)

Draws one inter-event time, advancing (and retaining) the modulating phase.