plot_DRCSummary function

Create a Dose-Response Curve Summary Plot

While analysing OSL SAR or pIRIR-data the view on the data is usually limited to one dose-response curve (DRC) at the time for one aliquot. This function overcomes this limitation by plotting all DRCs from an RLum.Results object created by analyse_SAR.CWOSL in one single plot.

If you want plot your DRC on an energy scale (dose in Gy), you can either use option source_dose_rate or perform your SAR analysis with the dose points in Gy (better axis scaling).

plot_DRCSummary(
  object,
  source_dose_rate = NULL,
  sel_curves = NULL,
  show_dose_points = FALSE,
  show_natural = FALSE,
  n = 51L,
  ...
)

Arguments

• object: RLum.Results (required ): input object created by analyse_SAR.CWOSL . The input object can be provided as list .
• source_dose_rate: numeric (optional): allows to modify the axis and show values in Gy, instead seconds. Only a single numerical value is allowed.
• sel_curves: numeric (optional): id of the curves to be plotted in its occurring order. A sequence can be provided for selecting, e.g., only every 2nd curve from the input object.
• show_dose_points: logical (with default): enable/disable plotting of dose points in the graph.
• show_natural: logical (with default): enable/disable the plot of the natural Lx/Tx values.
• n: integer (with default): number of x-values used to evaluate one curve object. Large numbers slow down the plotting process and are usually not needed.
• ...: Further arguments and graphical parameters to be passed. In particular: main, xlab, ylab, xlim, ylim, lty, lwd, pch, col.pch, col.lty, mtext

Returns

An RLum.Results object is returned:

Slot: @data

OBJECT	TYPE	COMMENT
results	data.frame	with dose and LxTx values
data	RLum.Results	original input data

Slot: @info

OBJECT	TYPE	COMMENT
call	call	the original function call
args	list	arguments of the original function call

Note: If the input object is a list a list of RLum.Results objects is returned.

Function version

0.2.3

Examples

#load data example data
data(ExampleData.BINfileData, envir = environment())

#transform the values from the first position in a RLum.Analysis object
object <- Risoe.BINfileData2RLum.Analysis(CWOSL.SAR.Data, pos=1)

results <- analyse_SAR.CWOSL(
  object = object,
  signal.integral.min = 1,
  signal.integral.max = 2,
   background.integral.min = 900,
   background.integral.max = 1000,
   plot = FALSE
 )

##plot only DRC
plot_DRCSummary(results)

See Also

RLum.Results , analyse_SAR.CWOSL

Author(s)

Sebastian Kreutzer, Institute of Geography, Heidelberg University (Germany)

Christoph Burow, University of Cologne (Germany) , RLum Developer Team

How to cite

Kreutzer, S., Burow, C., 2025. plot_DRCSummary(): Create a Dose-Response Curve Summary Plot. Function version 0.2.3. In: Kreutzer, S., Burow, C., Dietze, M., Fuchs, M.C., Schmidt, C., Fischer, M., Friedrich, J., Mercier, N., Philippe, A., Riedesel, S., Autzen, M., Mittelstrass, D., Gray, H.J., Galharret, J., Colombo, M., Steinbuch, L., Boer, A.d., 2025. Luminescence: Comprehensive Luminescence Dating Data Analysis. R package version 1.0.1. https://r-lum.github.io/Luminescence/