MODIS/man/transDate.Rd

% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/transDate.R
\name{transDate}
\alias{transDate}
\title{MODIS Date Conversion and Testing}
\usage{
transDate(begin = NULL, end = NULL)
}
\arguments{
\item{begin, end}{\code{character} or \code{Date}. Begin (end) date of MODIS 
time series, see Note. If not provided, this defaults to \code{"1972-01-01"} 
(\code{Sys.Date()}).}
}
\value{
A \code{list} of begin and end dates formatted according to 'YYYY-MM-DD' 
(first two slots; class \code{Date}) and 'YYYYDDD' (second two slots; class 
\code{character}).
}
\description{
This function converts a sequence of input dates to 'YYYY-MM-DD' and 
'YYYYDDD'.
}
\note{
If input dates are supplied as \code{character}, this function either expects 
7-digit strings in the MODIS intrinsic form \code{'\%Y\%j'} or, alternatively, 
10-digit strings in the form \code{'\%Y-\%m-\%d'} where the two field separators 
need to be uniform (see Examples).
}
\examples{
transDate()
transDate(begin = "2009.01.01") # ends with current date
transDate(end = "2009.01.01") # starts with Landsat 1
transDate(begin = c("2009-01-01", "2010-01-01"), end = "2011.03.16")
               
}
\seealso{
\code{\link{strptime}}.
}
\author{
Matteo Mattiuzzi, Florian Detsch
}