.. currentmodule:: brian

.. index::
   pair: example usage; NeuronGroup
   pair: example usage; run
   pair: example usage; group
   pair: example usage; PoissonThreshold
   pair: example usage; PopulationRateMonitor

.. _example-misc_rate_model:

Example: rate_model (misc)
==========================

A rate model

::

    from brian import *
    
    N = 50000
    tau = 20 * ms
    I = 10 * Hz
    eqs = '''
    dv/dt=(I-v)/tau : Hz # note the unit here: this is the output rate
    '''
    group = NeuronGroup(N, eqs, threshold=PoissonThreshold())
    S = PopulationRateMonitor(group, bin=1 * ms)
    
    run(100 * ms)
    
    plot(S.rate)
    show()
    

