Import xy-Data for Supported Formats into R

The function provides access to the underlying xylib to import data for supported file formats into R. In most cases, only the file path is needed with further arguments to import the data. The function automatically recognises allowed formats. See rxylib-package for supported formats.

read_xyData(file, options = "", verbose = TRUE, metaData = TRUE)

Arguments

file: character (required): path and file to be imported. The argument accepts an URL. Can be character vector or a list of characters.
options: character (with default): set format options (see rxylib-package)
verbose: logical (with default): enables/disables verbose mode
metaData: logical (with default): enables/disables the export of metadata

Value

The functions returns a list of matrices.

Function version

0.3.0

Author

Sebastian Kreutzer, Institute of Geography, Ruprecht-Karl-University of Heidelberg (Germany), Johannes Friedrich, University of Bayreuth (Germany)

How to cite

Kreutzer, S., Friedrich, J., 2023. read_xyData(): Import xy-Data for Supported Formats into R. Function version 0.3.0. In: Kreutzer, S., Friedrich, J., 2023. rxylib: Import XY-Data into R . R package version 0.2.11. https://github.com/R-Lum/rxylib

Examples


##load example dataset
file <- system.file("extdata/ExampleSpectrum.CNF", package = "rxylib")
results <- read_xyData(file)
#> [read_xyData()] File of type Canberra CNF detected ...
results
#> 
#> [rxylib-object]
#>   Imported format:	 Canberra CNF
#>   Imported blocks: 	 1
#>   Dataset has metadata:	 FALSE
#> 
#>   << block 1 : Thorit Kalibrierung >>
#>   .. $data_block 	 matrix : 2048 x 2
#>   .. $metadata_block 	 TRUE

##plot xy-spectrum
plot(results,
 type = "l",
 xlab = "Energy [keV]",
 ylab = "Counts",
 main = "Thorite - 1800 s")

mtext(side = 3, "Canberra Inspector 1000, 3 x 3 NaI probe")


##plot contour for TL-spectrum
##imported from an XSYG-file
spectrum <- read_xyData(system.file("extdata/TLSpectrum.xsyg", package = "rxylib"))
#> [read_xyData()] File of type Freiberg Instruments XSYG detected ...
contour(
 x = spectrum$dataset[[1]]$data_block[,1],
 y = 1:ncol(spectrum$dataset[[1]]$data_block[,-1]),
 z = spectrum$dataset[[1]]$data_block[,-1],
 xlab = "Wavelength [nm]",
 ylab = "#Channel",
 main = "TL Spectrum")