Table of Contents
Name | Direction | Type | Default | Description |
---|---|---|---|---|
Workspaces | Input | string | Mandatory | Input workspaces. Comma separated workspace names |
OutputWorkspace | Output | MatrixWorkspace | Mandatory | Output mean workspace |
Calculates the arithmetic mean of the y values of the workspaces provided. If each input workspace is labelled and there
are N workspaces then the mean is computed as:
where m is the output workspace. The x values are copied from the first input workspace.
All input workspaces must have the same shape and the x axis must be in the same order.
Example: Simple mean of two workspaces
# Create two 2-spectrum workspaces with Y values 1->8 & 3->10
dataX = [0,1,2,3,4,
0,1,2,3,4]
dataY = [1,2,3,4,
5,6,7,8]
ws_1 = CreateWorkspace(dataX, dataY, NSpec=2)
dataY = [3,4,5,6,
7,8,9,10]
ws_2 = CreateWorkspace(dataX, dataY, NSpec=2)
result = Mean("ws_1, ws_2") # note the comma-separate strings
print("Mean of y values in first spectrum: {}".format(result.readY(0)))
print("Mean of y values in second spectrum: {}".format(result.readY(1)))
Output:
Mean of y values in first spectrum: [ 2. 3. 4. 5.]
Mean of y values in second spectrum: [ 6. 7. 8. 9.]
Categories: Algorithm Index | Arithmetic