\name{celDates}
 \alias{celDates}
 \title{Extract dates from the cel file header}
 \description{
   Extract dates from the cel file header.
 }
 \usage{
 celDates(celfiles)
 }
 \arguments{
   \item{celfiles}{CEL file names.  Must specify the complete path.}
 }
 \value{
   date-time class POSIXt
 }
 \author{R. Scharpf}
 \seealso{ \cite{\link[affyio]{read.celfile.header}}, \cite{\link{POSIXt}}}
 \keyword{manip}