File Import Witec Raman

Import Raman Spectra/Maps from Witec Instrument via ASCII files.

read.txt.Witec(
  file = stop("filename or connection needed"),
  points.per.line = NULL,
  lines.per.image = NULL,
  type = c("single", "map"),
  hdr.label = FALSE,
  hdr.units = FALSE,
  encoding = "unknown",
  ...,
  quiet = TRUE
)

read.dat.Witec(
  filex = stop("filename or connection needed"),
  filey = sub("-x", "-y", filex),
  points.per.line = NULL,
  lines.per.image = NULL,
  type = c("single", "map"),
  encoding = "unknown",
  ...,
  quiet = hy.getOption("debuglevel") < 1L
)

read.txt.Witec.Graph(
  headerfile = stop("filename or connection needed"),
  filex = gsub("Header", "X-Axis", headerfile),
  filey = gsub("Header", "Y-Axis", headerfile),
  type = c("single", "map"),
  encoding = "unknown",
  ...,
  quiet = TRUE
)

Arguments

file	filename or connection to ASCII file
points.per.line	number of spectra in x direction of the map
lines.per.image	number of spectra in y direction
type	type of spectra: single for single spectra (including time series), map for imaging data.
hdr.label	WITec Project exports the spectra names (contain information of map position or number of spectra) within the file.
hdr.units	WITec Project exports the spectra units within the file.
encoding	character encoding, see base::readLines()
..., quiet	handed to base::scan()
filex	filename wavelength axis file
filey	filename intensity file
headerfile	filename or connection to ASCII file with header information

Value

a hyperSpec object

Details

read.txt.Witec() reads Witec ASCII files where the first column gives the wavelength axes and the other columns the spectra. read.dat.Witec() reads Witec's ASCII exported data, which comes in separate files with x and y data.

See also

vignette("fileio") for more information on file import

options() for details on options.

Author

Claudia Beleites and Marcel Dahms