\HeaderA{RNA2DNA}{A Function to translate RNA sequences into DNA sequences.}{RNA2DNA}
\keyword{manip}{RNA2DNA}
\begin{Description}\relax
RNA and DNA differ in that RNA uses uracil (U) and DNA uses thiamine (T),
this function translates an RNA sequence into a DNA sequence by translating
the characters.
\end{Description}
\begin{Usage}
\begin{verbatim}
RNA2DNA(x)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{x}] A valid RNA sequence. 
\end{ldescription}
\end{Arguments}
\begin{Details}\relax
No checking for validity of sequence is made, and the input sequence is
translated to upper case.
\end{Details}
\begin{Value}
A character vector, of the same length as \code{x} where all characters
are in upper case, and any instance of \code{U} in \code{x} is replaced
by a \code{T}.
\end{Value}
\begin{Author}\relax
R. Gentleman
\end{Author}
\begin{SeeAlso}\relax
\code{\LinkA{chartr}{chartr}}
\end{SeeAlso}
\begin{Examples}
\begin{ExampleCode}
 input = c("AUCG", "uuac")
 RNA2DNA(input)
\end{ExampleCode}
\end{Examples}

