Luminescence (version 0.9.25)

read_PSL2R: Import PSL files to R

Description

Imports PSL files produced by a SUERC portable OSL reader into R.

Usage

read_PSL2R(
  file,
  drop_bg = FALSE,
  as_decay_curve = TRUE,
  smooth = FALSE,
  merge = FALSE,
  ...
)

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 this case the 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.

...

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., 2024. read_PSL2R(): Import PSL files to 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., 2024. Luminescence: Comprehensive Luminescence Dating Data Analysis. R package version 0.9.25. https://r-lum.github.io/Luminescence/

Details

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.

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)