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Max v1

Summary

Takes a 2D workspace as input and find the maximum in each 1D spectrum.

See Also

Min, MaxMin

Properties

Name	Direction	Type	Default	Description
InputWorkspace	Input	MatrixWorkspace	Mandatory	The name of the Workspace2D to take as input
OutputWorkspace	Output	MatrixWorkspace	Mandatory	The name of the workspace in which to store the result
RangeLower	Input	number	Optional	The X value to search from (default min)
RangeUpper	Input	number	Optional	The X value to search to (default max)
StartWorkspaceIndex	Input	number	0	Start spectrum number (default 0)
EndWorkspaceIndex	Input	number	Optional	End spectrum number (default max)

Description

The algorithm creates a new 1D workspace containing all maxima as well as their X boundaries and error. This is used in particular for single crystal as a quick way to find strong peaks.

Usage

# Create a workspace with two peaks in each spectrum
ws = CreateSampleWorkspace(Function='Multiple Peaks')
# Find the max values
max_ws = Max(ws)

# Check the returned values
print('Maximum found at bin [ {} , {} ], value {}'.format(max_ws.readX(0)[0], max_ws.readX(0)[1], max_ws.readY(0)[0]))
print('In original workspace')
print('Bounds of bin 30     [ {} , {} ], value {}'.format(ws.readX(0)[30], ws.readX(0)[31], ws.readY(0)[30]))

# Find another peak
max_ws = Max(ws,RangeLower = 7000)

# Check the returned values
print('Maximum found at bin [ {} , {} ], value {}'.format(max_ws.readX(0)[0], max_ws.readX(0)[1], max_ws.readY(0)[0]))
print('In original workspace')
print('Bounds of bin 60     [ {} , {} ], value {}'.format(ws.readX(0)[60], ws.readX(0)[61], ws.readY(0)[60]))

Output

Maximum found at bin [ 6000.0 , 6200.0 ], value 10.3
In original workspace
Bounds of bin 30     [ 6000.0 , 6200.0 ], value 10.3
Maximum found at bin [ 12000.0 , 12200.0 ], value 8.3
In original workspace
Bounds of bin 60     [ 12000.0 , 12200.0 ], value 8.3

Categories: AlgorithmIndex | Arithmetic

Source

C++ header: Max.h

C++ source: Max.cpp