Command: testsuite::test_iaf_dc_aligned_stop

Name:
testsuite::test_iaf_dc_aligned_stop - sli script for test of iaf_neuron resolution independence
Synopsis:
(test_iaf_dc_aligned_stop) run -> compare response with reference data
Description:
test_iaf_dc_aligned_stop.sli is an extended version of test_iaf_dc_aligned_delay.sli . In addition to the time when the current is switched on (/start) (test_iaf_dc_aligned_delay.sli) also a finite duration of the current is specified. This is done by supplying the DC generator device with the time stamp of the earliest DC event that should not be emitted. Consequently, stop = start + duration. In the step stop - h -> stop, no DC event is emitted anymore. A neuron connected to the DC generator interprets this as a DC current that is switched off precisely at time stop. Therefore, the DC current specified by start and stop is independent of the resolution h. The minimal duration is h. See [1] for details on why the DC generator specification is consistent with a grid based integration scheme of systems of differential equations. In this scheme DC currents are represeted by the differential equation d/dt I = 0. The resulting SLI code is independent of the resolution and generates exactly the same voltage trace at all resolutions. No output of the spike detector is visible here because of the short stimulation period of 2 ms. The expected output is documented at the end of the script.
References:
[1] Rotter S & Diesmann M (1999) Exact simulation of time-invariant linear systems with applications to neuronal modeling. Biologial Cybernetics 81:381-402.
Author:
July 2004, Diesmann
SeeAlso: testsuite::test_iaf_dc testsuite::test_iaf_dc_aligned_delay

Source:
/home/abuild/rpmbuild/BUILD/nest-2.4.1/testsuite/unittests/test_iaf_dc_aligned_stop.sli

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Name:	testsuite::test_iaf_dc_aligned_stop - sli script for test of iaf_neuron resolution independence
Synopsis:	(test_iaf_dc_aligned_stop) run -> compare response with reference data
Description:	test_iaf_dc_aligned_stop.sli is an extended version of test_iaf_dc_aligned_delay.sli . In addition to the time when the current is switched on (/start) (test_iaf_dc_aligned_delay.sli) also a finite duration of the current is specified. This is done by supplying the DC generator device with the time stamp of the earliest DC event that should not be emitted. Consequently, stop = start + duration. In the step stop - h -> stop, no DC event is emitted anymore. A neuron connected to the DC generator interprets this as a DC current that is switched off precisely at time stop. Therefore, the DC current specified by start and stop is independent of the resolution h. The minimal duration is h. See [1] for details on why the DC generator specification is consistent with a grid based integration scheme of systems of differential equations. In this scheme DC currents are represeted by the differential equation d/dt I = 0. The resulting SLI code is independent of the resolution and generates exactly the same voltage trace at all resolutions. No output of the spike detector is visible here because of the short stimulation period of 2 ms. The expected output is documented at the end of the script.
References:	[1] Rotter S & Diesmann M (1999) Exact simulation of time-invariant linear systems with applications to neuronal modeling. Biologial Cybernetics 81:381-402.
Author:	July 2004, Diesmann
SeeAlso:	`testsuite::test_iaf_dc` `testsuite::test_iaf_dc_aligned_delay`
Source:	/home/abuild/rpmbuild/BUILD/nest-2.4.1/testsuite/unittests/test_iaf_dc_aligned_stop.sli