LogUnit¶

class astropy.units.function.LogUnit(physical_unit=None, function_unit=None)[source]¶

Logarithmic unit containing a physical one

Usually, logarithmic units are instantiated via specific subclasses such MagUnit, DecibelUnit, and DexUnit.

Parameters

physical_unitUnit or string: Unit that is encapsulated within the logarithmic function unit. If not given, dimensionless.
function_unitUnit or string: By default, the same as the logarithmic unit set by the subclass.

Methods Summary

`from_physical`(x)	Transformation from value in physical to value in logarithmic units.
`to_physical`(x)	Transformation from value in logarithmic to value in physical units.

Methods Documentation

from_physical(x)[source]¶: Transformation from value in physical to value in logarithmic units. Used in equivalency.

to_physical(x)[source]¶: Transformation from value in logarithmic to value in physical units. Used in equivalency.