Subtract by IoSource data

Summary

Subtract a DataBundle element by a subtrahend loaded from a data source

Metadata

• Import path: modacor.modules.base_modules.subtract.Subtract

• Source: src/modacor/modules/base_modules/subtract.py

• Module ID: Subtract

• Module version: 20260927.2

• Keywords: subtract, scalar, array

Required data keys

• signal

Modifies

• signal: signal, uncertainties, units

Required arguments

• None

Default configuration

{
  "subtrahend_source": null,
  "subtrahend_uncertainties_sources": {},
  "subtrahend_units_source": null
}

Argument specification

Argument	Type	Required	Default	Dependency role	Description
subtrahend_source	str	No	-	-	IoSources key for the subtrahend signal.
subtrahend_uncertainties_sources	dict	No	{}	-	Mapping of uncertainty name to IoSources key.
subtrahend_units_source	str	No	-	-	IoSources key for subtrahend units metadata.

References

DOI 10.1088/0953-8984/25/38/383201

Notes

This loads a scalar (value, units and uncertainty) from an IOSource and applies it to the data signal