manual:poissongroup

**This is an old revision of the document!**

PoissonGroup is a SpikingGroup that implements `n`

independent homogenous Poisson neurons spiking at a given and generally fixed `rate`

. It is the standard way of adding noise into any network implemented in Auryn.

**Nota bene**: All PoissonGroups share the same random number generator which is seeded by default the same for each run of a simulation. To create differnt runs it has to be seeded randomly using the `seed`

function.

PoissonGroup(NeuronID n, AurynDouble rate=5. );

`n`

gives the desired size of the PoissonGroup and `rate`

fixes the mean firing rate in Hertz.

To seed the random number generator shared by all PoissonGroups the function `seed(int s)`

has to be called. Rate changes can be implemented by calling the method `set_rate(rate)`

where `rate`

is given in Hertz. Regular re-setting of the rate will impair the performance of the PoissonGroup.

manual/poissongroup.1383324294.txt.gz · Last modified: 2013/11/01 17:44 by zenke

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