\HeaderA{print.default}{Default Printing}{print.default}
\keyword{print}{print.default}
\begin{Description}\relax
\code{print.default} is the \emph{default} method of the generic
\code{\LinkA{print}{print}} function which prints its argument.
\end{Description}
\begin{Usage}
\begin{verbatim}
## Default S3 method:
print(x, digits = NULL, quote = TRUE, na.print = NULL,
      print.gap = NULL, right = FALSE, ...)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{x}] the object to be printed.
\item[\code{digits}] a non-null value for \code{digits} specifies the minimum
number of significant digits to be printed in values.   The default,
\code{NULL}, uses \code{\LinkA{getOption}{getOption}(digits)}.  (For the
intepretation for complex numbers see \code{\LinkA{signif}{signif}}.)
\item[\code{quote}] logical, indicating whether or not strings
(\code{\LinkA{character}{character}}s) should be printed with surrounding quotes.
\item[\code{na.print}] a character string which is used to indicate
\code{\LinkA{NA}{NA}} values in printed output, or \code{NULL} (see Details)
\item[\code{print.gap}] a non-negative integer \eqn{\le 1024}{<= 1024},
giving the spacing between adjacent \dQuote{columns} in printed
vectors, matrices and arrays, or \code{NULL} meaning 1.
\item[\code{right}] logical, indicating whether or not strings should be
right-aligned. The default is left-alignment.
\item[\code{...}] further arguments to be passed to or from other
methods. They are ignored in this function.
\end{ldescription}
\end{Arguments}
\begin{Details}\relax
The default for printing \code{NA}s is to print \code{NA} (without
quotes) unless this is a character \code{NA} \emph{and} \code{quote =
    FALSE}, when \code{<NA>} is printed.

The same number of decimal places is used throughout a vector,  This
means that \code{digits} specifies the minimum number of significant
digits to be used, and that at least one entry will be encoded with
that minimum number.  However, if all the encoded elements then have
trailing zeroes, the number of decimal places is reduced until at
least one element has a non-zero final digit.

Attributes are printed respecting their class(es), using the values of
\code{digits} to \code{print.default}, but using the default values
(for the methods called) of the other arguments.

When the \pkg{methods} package is attached, \code{print} will call
\code{\LinkA{show}{show}} for \R{} objects with formal classes if called
with no optional arguments.

If a non-printable character is encountered during output, it is
represented as one of the ANSI escape sequences (\code{\\a}, \code{\\b},
\code{\\f}, \code{\\n}, \code{\\r}, \code{\\t}, \code{\\v} and \code{\\0}),
or failing that as a 3-digit octal code: for example the UK currency
pound in the C locale (if implemented correctly) is printed as
\code{\\243}.  Which characters are non-printable depends on the locale.
\end{Details}
\begin{Section}{Unicode  and other multi-byte locales}
In a Unicode (UTF-8) locale, characters \code{0x00} to \code{0x1F} and
\code{0x7f} (the ASCII non-printing characters) are printed in the
same way, via ANSI escape sequences or 3-digit octal escapes.
Multi-byte non-printing characters are printed with as an escape
sequence of the form \code{\\uxxxx} or \code{\\Uxxxxxxxx} (in hexadecimal).

It is possible to have a character string in an object that is not
valid UTF-8.  If a byte is encountered that is not part of an
encoded Unicode character it is printed in hex in the form \code{<xx>}
and the next character is tried.
\end{Section}
\begin{SeeAlso}\relax
The generic \code{\LinkA{print}{print}}, \code{\LinkA{options}{options}}.
The \code{"\LinkA{noquote}{noquote}"} class and print method.

\code{\LinkA{encodeString}{encodeString}}.
\end{SeeAlso}
\begin{Examples}
\begin{ExampleCode}
pi
print(pi, digits = 16)
LETTERS[1:16]
print(LETTERS, quote = FALSE)
\end{ExampleCode}
\end{Examples}

