\name{ImportFameSettings}
\alias{ImportFameSettings}
\title{ Retention time markers settings }
\description{
  This function imports a list of retention standard markers.
}
\usage{
ImportFameSettings(tmp.file = NA, mass = NA, ...)
}
\arguments{
  \item{tmp.file}{ A character string naming a file with standard markers. }
  \item{mass}{ The m/z standard marker.  }
  \item{\dots}{ Other options passed to \code{\link[utils]{read.delim}} function. }
}
\details{
    The standard marker file is a tab-delimited text file with 3 or 4 columns.
    Column names doesn't matter. They must be in the following order.
 
  \itemize{
  \item \code{LowerLimit} - The Retention time lower limit in seconds.
  \item \code{UpperLimit} - The Retention time upper limit in seconds.
  \item \code{RIstandard} - The RI value of that standard.
  \item \code{mass} - The m/z standard marker. This column is optional since
  it could be set by the \code{mass} parameter.
 }
    If no arguments are given, a default object will be returned.
}
\value{
    A \code{tsRim} object.
}
\examples{
# get the RI marker definition file
cdfpath  <- file.path(.find.package("TargetSearchData"), "gc-ms-data")
rim.file <- file.path(cdfpath, "rimLimits.txt")

# set the mass marker to 87
mass <- 87

# load the definition
rimLimits <- ImportFameSettings(rim.file, mass = mass)

# sometimes you need to change the limits of a particular standard
rimLimits(rimLimits)[2,] <- c(410, 450)

# to change the mass value
rimMass(rimLimits) <- 85

}
\author{Alvaro Cuadros-Inostroza, Matthew Hannah, Henning Redestig }
\seealso{ \code{\link{RIcorrect}}, \code{\linkS4class{tsRim}} }