IntensityCorrection
This object is placed under an Experimental Plot object to
allow the plotted and fitted intensity to be adjusted as a
function of the uncorrected intensity or frequency. The value of
the expression is taken as the intensity. A possible function
might be:
y/(-0.6138 + .00016732*x)
which divides the original intensity (y)
by a linear function (-0.6138 + .00016732*x) of position, x.
The function will be evaluated for each data point. Notes:
- The function is held in the comment field for the object; in
the constants window an
enlarged text window replaces the normal comments window.
- See expressions for more
details on the format of expressions.
- The pre-defined variables are listed below; any unknown
variables in the function are automatically created as
parameters on simulating, or on right clicking on the node and
selecting "Check Variables"
- Unwanted variables that are no longer in the expression can be
removed by right clicking on the parameter and selecting remove.
Built In Variables
i
|
Point number
|
x
|
The x (Position)
value
|
y
|
The y (Intensity)
value
|
w
|
The estimated error in the
position, if present in the original data, 1 otherwise. |
wy
|
The estimated error in the
intensity, if present in the original data, 1 otherwise. |
n
|
The number of points.
|
Settings
| Active |
True if object is to be used |
| nDebug |
Set non zero to write information to the log window on
each use - See expressions |
Objects Overlays
Experimental Plot