Luminescence (version 1.1.2)

read_PSL2R: Import SUERC portable OSL Reader PSL files into R

Description

This function provides an import routine for the SUERC portable OSL Reader PSL format (measurement data and sequence). PSL files are just plain text and can be viewed with any text editor. Due to the formatting of PSL files, this import function relies heavily on regular expression to find and extract all relevant information. See note.

Usage

read_PSL2R(
  file,
  drop_bg = FALSE,
  as_decay_curve = TRUE,
  smooth = FALSE,
  merge = FALSE,
  pattern = "\\.psl$",
  verbose = TRUE,
  ...
)

Value

Returns an S4 RLum.Analysis object containing RLum.Data.Curve objects for each curve.

Arguments

file

character (required): path and file name of the PSL file. If input is a vector it should comprise only characters representing valid paths and PSL file names. Alternatively, the input character can be just a directory (path), in which case the function tries to detect and import all PSL files found in the directory.

drop_bg

logical (with default): TRUE to automatically remove all non-OSL/IRSL curves.

as_decay_curve

logical (with default): Portable OSL Reader curves are often given as cumulative light sum curves. Use TRUE (default) to convert the curves to the more usual decay form.

smooth

logical (with default): TRUE to apply Tukey's Running Median Smoothing for OSL and IRSL decay curves. Smoothing is encouraged if you see random signal drops within the decay curves related to hardware errors.

merge

logical (with default): TRUE to merge all RLum.Analysis objects. Only applicable if multiple files are imported.

pattern

character (with default): regular expression pattern passed to list.files to construct a list of files to read (used only when a path is provided).

verbose

logical (with default): enable/disable output to the terminal.

...

currently not used.

Function version

0.1.1

Author

Christoph Burow, University of Cologne (Germany), Sebastian Kreutzer, Institut of Geography, Heidelberg University (Germany) , RLum Developer Team

How to cite

Burow, C., Kreutzer, S., 2025. read_PSL2R(): Import SUERC portable OSL Reader PSL files into R. Function version 0.1.1. 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 1.1.2. https://r-lum.github.io/Luminescence/

See Also

RLum.Analysis, RLum.Data.Curve, RLum.Data.Curve

Examples

# (1) Import PSL file to R

file <- system.file("extdata", "DorNie_0016.psl", package = "Luminescence")
psl <- read_PSL2R(file, drop_bg = FALSE, as_decay_curve = TRUE, smooth = TRUE, merge = FALSE)
print(str(psl, max.level = 3))
plot(psl, combine = TRUE)