Experimental Plot

Settings

Units

Horizontal Axis units.

IntensityUnits

Selects vertical units for plot. This has the same possible values as for a simulation, though the interpretation is slightly different:

Arbitrary - plot will always be autoscaled to full range available, and a vertical axis will typically not be displayed.
Normalized - A vertical scale is displayed, and the same scaling is used for simulations and the overlay.
Squared - plot will always be autoscaled to full range available
nm2MHzperMolecule - for normal absorption
cm2WavenumberperMolecule - for normal absorption
HzperMolecule - for emission

For the last three the experimental data is taken to be in the correct units, and will be converted when plotting to that chosen in the simulation object. For this to work correctly, the baseline in the data should be correct.

Colour

Colour for plot.

Hide

Hide this plot

ZeroValid

Set if zero in data is correct.

AutoMin

If set, Ymin automatically updated to minimum point in plot range

AutoMax

If set, Ymax automatically updated to maximum point in plot range

FixCentre

Select style of frequency scaling; see FrequencyScale below.

FirstPoint

First point to use in fitting and plotting. (Note that the point number under the mouse is shown at the bottom of the overlays window).

LastPoint

Last point to use in fitting and plotting.

IsLineList

Set to treat data as a list of line positions, optionally with intensity.

Convolute

Set to convolute experimental spectrum with simulation linewidth(s).

ComponentType

(Future Use)

Parameters

FrequencyOffset

Frequency offset used when displaying plot. Note this is distinct from Offset in the constants window (and in the main window), which changes the frequency offset of the simulation.

FrequencyScale

Scaling factor for horizontal scale. The correction formula used is:

If FixCentre is clear (default):

f' = (f-f_av)*FrequencyScale + FrequencyOffset

where f_av is the average of the highest and lowest frequencies. This means that the centre of the plot only shifts by FrequencyOffset, regardless of the scale used.

If FixCentre is set:

f' = f*FrequencyScale + FrequencyOffset

Note that FixCentre was introduced in version 5.2.861; earlier versions assumed FixCentre set, so older overlay files will need adjustment.

Ymin

Lower end of current plot range; overwritten with lowest value in current range if AutoMin set

Ymax

Upper end of current plot range; overwritten with lowest value in current range if AutoMin set

Baseline

Baseline position.

Scale

Vertical scale factor used in plotting.

Units	Horizontal Axis units.
IntensityUnits	Selects vertical units for plot. This has the same possible values as for a simulation, though the interpretation is slightly different: Arbitrary - plot will always be autoscaled to full range available, and a vertical axis will typically not be displayed. Normalized - A vertical scale is displayed, and the same scaling is used for simulations and the overlay. Squared - plot will always be autoscaled to full range available nm2MHzperMolecule - for normal absorption cm2WavenumberperMolecule - for normal absorption HzperMolecule - for emission For the last three the experimental data is taken to be in the correct units, and will be converted when plotting to that chosen in the simulation object. For this to work correctly, the baseline in the data should be correct.
Colour	Colour for plot.
Hide	Hide this plot
ZeroValid	Set if zero in data is correct.
AutoMin	If set, Ymin automatically updated to minimum point in plot range
AutoMax	If set, Ymax automatically updated to maximum point in plot range
FixCentre	Select style of frequency scaling; see FrequencyScale below.
FirstPoint	First point to use in fitting and plotting. (Note that the point number under the mouse is shown at the bottom of the overlays window).
LastPoint	Last point to use in fitting and plotting.
IsLineList	Set to treat data as a list of line positions, optionally with intensity.
Convolute	Set to convolute experimental spectrum with simulation linewidth(s).
`ComponentType`	(Future Use)

FrequencyOffset	Frequency offset used when displaying plot. Note this is distinct from Offset in the constants window (and in the main window), which changes the frequency offset of the simulation.
FrequencyScale	Scaling factor for horizontal scale. The correction formula used is: If FixCentre is clear (default): f' = (f-f_av)FrequencyScale + FrequencyOffset where f_av is the average of the highest and lowest frequencies. This means that the centre of the plot only shifts by FrequencyOffset, regardless of the scale used. If FixCentre is set: f' = fFrequencyScale + FrequencyOffset Note that FixCentre was introduced in version 5.2.861; earlier versions assumed FixCentre set, so older overlay files will need adjustment.
Ymin	Lower end of current plot range; overwritten with lowest value in current range if AutoMin set
Ymax	Upper end of current plot range; overwritten with lowest value in current range if AutoMin set
Baseline	Baseline position.
Scale	Vertical scale factor used in plotting.