PoissonGroup class¶
(Shortest import: from brian2 import PoissonGroup)
-
class
brian2.input.poissongroup.
PoissonGroup
(*args, **kw)[source]¶ Bases:
brian2.groups.group.Group
,brian2.core.spikesource.SpikeSource
Poisson spike source
- Parameters
N : int
Number of neurons
rates :
Quantity
, strSingle rate, array of rates of length N, or a string expression evaluating to a rate. This string expression will be evaluated at every time step, it can therefore be time-dependent (e.g. refer to a
TimedArray
).dt :
Quantity
, optionalThe time step to be used for the simulation. Cannot be combined with the
clock
argument.clock :
Clock
, optionalThe update clock to be used. If neither a clock, nor the
dt
argument is specified, thedefaultclock
will be used.when : str, optional
When to run within a time step, defaults to the
'thresholds'
slot.order : int, optional
The priority of of this group for operations occurring at the same time step and in the same scheduling slot. Defaults to 0.
name : str, optional
Unique name, or use poissongroup, poissongroup_1, etc.
Attributes
The group-specific namespace
The spikes returned by the most recent thresholding operation.
Methods
before_run
([run_namespace])Optional method to prepare the object before a run.
Details
-
namespace
¶ The group-specific namespace
-
spikes
¶ The spikes returned by the most recent thresholding operation.
-
before_run
(run_namespace=None)[source]¶ Optional method to prepare the object before a run.
Called by
Network.after_run
before the main simulation loop starts.
Tutorials and examples using this¶
Tutorial 3-intro-to-brian-simulations
Example adaptive_threshold
Example synapses/STDP
Example standalone/STDP_standalone
Example advanced/custom_events