# dimensions_and_type_from_string function¶

(Shortest import: from brian2.equations.equations import dimensions_and_type_from_string)

brian2.equations.equations.dimensions_and_type_from_string(unit_string)[source]

Returns the physical dimensions that results from evaluating a string like “siemens / metre ** 2”, allowing for the special string “1” to signify dimensionless units, the string “boolean” for a boolean and “integer” for an integer variable.

Parameters

unit_string : str

The string that should evaluate to a unit

Returns

d, type : (Dimension, {FLOAT, INTEGER or BOOL})

The resulting physical dimensions and the type of the variable.

Raises

ValueError

If the string cannot be evaluated to a unit.