ExtractSingleSpectrum v1#

Summary#

Extracts the specified spectrum from a workspace and places it in a new single-spectrum workspace.

Properties#

Name	Direction	Type	Default	Description
InputWorkspace	Input	MatrixWorkspace	Mandatory	The name of the input workspace.
OutputWorkspace	Output	MatrixWorkspace	Mandatory	The name under which to store the output workspace.
WorkspaceIndex	Input	number	Mandatory	The workspace index number of the spectrum to extract.

Description#

Extracts a single spectrum from a Workspace2D and stores it in a new workspace.

Usage#

Example

ws = CreateSampleWorkspace()
print("Workspace %s contains %i spectra" % (ws, ws.getNumberHistograms()))
print("Counts for every 10th bin for workspace index 5")
print(", ".join(["{:.1f}".format(y) for y in ws.readY(5)[0:100:10]]))

wsOut = ExtractSingleSpectrum(ws,WorkspaceIndex=5)
print("After extracting one spectra at workspace index 5")

print("Workspace %s contains %i spectra" % (wsOut, wsOut.getNumberHistograms()))
print("Counts for every 10th bin for workspace index 0 (now it's 0 as wsOut only contains 1 spectra)")
print(", ".join(["{:.1f}".format(y) for y in wsOut.readY(0)[0:100:10]]))

Output:

Workspace ws contains 200 spectra
Counts for every 10th bin for workspace index 5
0.3, 0.3, 0.3, 0.3, 0.3, 10.3, 0.3, 0.3, 0.3, 0.3
After extracting one spectra at workspace index 5
Workspace wsOut contains 1 spectra
Counts for every 10th bin for workspace index 0 (now it's 0 as wsOut only contains 1 spectra)
0.3, 0.3, 0.3, 0.3, 0.3, 10.3, 0.3, 0.3, 0.3, 0.3

Categories: AlgorithmIndex | Transforms\Splitting