LogarithmMD v1¶

../_images/LogarithmMD-v1_dlg.png

LogarithmMD dialog.

Table of Contents

Summary
- See Also
Properties
Description
Source

Summary ¶

Perform a natural logarithm of a MDHistoWorkspace.

See Also ¶

PowerMD, ExponentialMD

Properties ¶

Name	Direction	Type	Default	Description
InputWorkspace	Input	IMDWorkspace	Mandatory	A MDEventWorkspace or MDHistoWorkspace on which to apply the operation.
OutputWorkspace	Output	IMDWorkspace	Mandatory	Name of the output MDEventWorkspace or MDHistoWorkspace.
Filler	Input	number	0	Some values in a workspace can normally be zeros or may get negative values after transformations log(x) is not defined for such values, so here is the value, that will be placed as the result of log(x<=0) operation Default value is 0
Natural	Input	boolean	True	Switch to choose between natural or base 10 logarithm. Default true (natural).

Description ¶

This executes the natural logarithm operation on a MDHistoWorkspace.

The signal $a$ becomes $f = log(a)$

The error $da$ becomes $df^2 = a^2 / da^2$

This algorithm cannot be run on a MDEventWorkspace. Its equivalent on a MatrixWorkspace is called Logarithm v1.

Categories: Algorithm Index | MDAlgorithms\MDArithmetic

Source ¶

C++ source: LogarithmMD.cpp (last modified: 2018-10-05)

C++ header: LogarithmMD.h (last modified: 2018-10-05)