Subexpression class

(Shortest import: from brian2.core.variables import Subexpression)

class brian2.core.variables.Subexpression(name, owner, expr, device, dimensions=Dimension(), dtype=None, scalar=False)[source]

Bases: Variable

An object providing information about a named subexpression in a model. Most of the time Variables.add_subexpression should be used instead of instantiating this class directly.

Attributes

`device`	The `Device` responsible for memory access
`expr`	The expression defining the subexpression
`identifiers`	The identifiers used in the expression

Methods

`get_addressable_value`(name, group)	Get the value (without units) of this variable in a form that can be indexed in the context of a group.
`get_addressable_value_with_unit`(name, group)	Get the value (with units) of this variable in a form that can be indexed in the context of a group.

Details

device: The Device responsible for memory access

expr: The expression defining the subexpression

identifiers: The identifiers used in the expression

get_addressable_value(name, group)[source]: Get the value (without units) of this variable in a form that can be indexed in the context of a group. For example, if a postsynaptic variable x is accessed in a synapse S as S.x_post, the synaptic indexing scheme can be used.

get_addressable_value_with_unit(name, group)[source]: Get the value (with units) of this variable in a form that can be indexed in the context of a group. For example, if a postsynaptic variable x is accessed in a synapse S as S.x_post, the synaptic indexing scheme can be used.