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##' Import Raman Spectra/Maps from Andor Cameras/Solis ASCII files
##'
##' \code{scan.asc.Andor} reads Andor Solis ASCII (\code{.asc}) files where the first column gives the wavelength
##' axes and the other columns the spectra.
##'
##' @title File Import Andor Solis
##' @param file filename or connection to ASCII file
##' @param ...,quiet,dec,sep handed to \code{\link[base]{scan}}
##' @return a hyperSpec object
##' @author Claudia Beleites
##' @seealso \code{vignette ("fileio")} for more information on file import and
##'
##' \code{\link{options}} for details on options.
##' @include scan.txt.Witec.R
##' @include fileio.optional.R
##' @export
scan.asc.Andor <- function (file = stop ("filename or connection needed"),
..., quiet = TRUE, dec = ".", sep = ","){
## check for valid data connection
.check.con (file = file)
## read spectra
tmp <- readLines (file)
nwl <- length (tmp)
txt <- scan (text = tmp, dec = dec, sep = sep, quiet = quiet, ...)
dim (txt) <- c (length (txt) / nwl, nwl)
## fix: Andor Solis may have final comma without values
if (all (is.na (txt [nrow (txt), ])))
txt <- txt [- nrow (txt), ]
spc <- new ("hyperSpec", wavelength = txt [1, ], spc = txt [-1, ])
## consistent file import behaviour across import functions
.fileio.optional (spc, file)
}
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