Scale dialog.
Table of Contents
Scales an input workspace by the given factor, which can be either multiplicative or additive.
| Name | Direction | Type | Default | Description |
|---|---|---|---|---|
| InputWorkspace | Input | MatrixWorkspace | Mandatory | |
| OutputWorkspace | Output | MatrixWorkspace | Mandatory | |
| Factor | Input | number | 1 | The value by which to scale the input workspace |
| Operation | Input | string | Multiply | Whether to multiply by, or add factor. Allowed values: [‘Multiply’, ‘Add’] |
Uses the binary operation algorithms Multiply v1 or Plus v1 to scale the input workspace by the amount requested. This algorithm is provided as a simple, but less powerful, alternative to the python workspace algebra functionality.
Example: Adding an offset
ws = CreateSampleWorkspace(BankPixelWidth=1)
print "Every 10th bin value of " + ws.name()
print ws.readY(0)[0:100:10]
# Add 2 using scale
wsOffset = Scale(ws,2,"Add")
print "Every 10th bin value of " + wsOffset.name()
print wsOffset.readY(0)[0:100:10]
# Add 2 using the workspace operator overloads
wsOffset2 = ws + 2
print "Every 10th bin value of " + wsOffset2.name()
print wsOffset2.readY(0)[0:100:10]
Output:
Every 10th bin value of ws
[ 0.3 0.3 0.3 0.3 0.3 10.3 0.3 0.3 0.3 0.3]
Every 10th bin value of wsOffset
[ 2.3 2.3 2.3 2.3 2.3 12.3 2.3 2.3 2.3 2.3]
Every 10th bin value of wsOffset2
[ 2.3 2.3 2.3 2.3 2.3 12.3 2.3 2.3 2.3 2.3]
Example: Multiplying by a value
ws = CreateSampleWorkspace(BankPixelWidth=1)
print "Every 10th bin value of " + ws.name()
print ws.readY(0)[0:100:10]
# Multiply by 10 using scale
wsScaled = Scale(ws,10,"Multiply")
print "Every 10th bin value of " + wsScaled.name()
print wsScaled.readY(0)[0:100:10]
# Multiply by 10 using the workspace operator overloads
wsScaled2 = ws * 10
print "Every 10th bin value of " + wsScaled2.name()
print wsScaled2.readY(0)[0:100:10]
Output:
Every 10th bin value of ws
[ 0.3 0.3 0.3 0.3 0.3 10.3 0.3 0.3 0.3 0.3]
Every 10th bin value of wsScaled
[ 3. 3. 3. 3. 3. 103. 3. 3. 3. 3.]
Every 10th bin value of wsScaled2
[ 3. 3. 3. 3. 3. 103. 3. 3. 3. 3.]
Categories: Algorithms | Arithmetic | CorrectionFunctions