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CreateSingleValuedWorkspace dialog.
Table of Contents
| Name | Direction | Type | Default | Description |
|---|---|---|---|---|
| OutputWorkspace | Output | MatrixWorkspace | Mandatory | Name to use for the output workspace |
| DataValue | Input | number | 0 | The value to place in the workspace |
| ErrorValue | Input | number | 0 | The error value to place in the workspace (default 0.0) |
Creates a 2D workspace that contains a single value and an optional error value. This was traditionally used for doing binary operations between a workspace and a single value. However, now that the Python access allows the standard binary operations with workspaces & single numbers, the requirement for this algorithm is almost gone.
One use case for which it will be required is when performing operations using only the MantidPlot GUI point-and-click approach.
Workspace with single y value and zero error:
five = CreateSingleValuedWorkspace(5)
print("Number of histograms: {}".format(five.getNumberHistograms()))
print("Length of y array: {}".format(len(five.readY(0))))
print("Length of e array: {}".format(len(five.readE(0))))
print("Length of x array: {}".format(len(five.readX(0))))
print("y value: {}".format(five.readY(0)))
print("e value: {}".format(five.readE(0)))
Output:
Number of histograms: 1
Length of y array: 1
Length of e array: 1
Length of x array: 1
y value: [ 5.]
e value: [ 0.]
Workspace with single y and e value:
five = CreateSingleValuedWorkspace(5, 0.1)
print("Number of histograms: {}".format(five.getNumberHistograms()))
print("Length of y array: {}".format(len(five.readY(0))))
print("Length of e array: {}".format(len(five.readE(0))))
print("Length of x array: {}".format(len(five.readX(0))))
print("y value: {}".format(five.readY(0)))
print("e value: {}".format(five.readE(0)))
Output:
Number of histograms: 1
Length of y array: 1
Length of e array: 1
Length of x array: 1
y value: [ 5.]
e value: [ 0.1]
Categories: AlgorithmIndex | Utility\Workspaces
C++ header: CreateSingleValuedWorkspace.h (last modified: 2020-03-20)
C++ source: CreateSingleValuedWorkspace.cpp (last modified: 2020-04-07)