print.default
is the default method of the generic
print
function which prints its argument.
"print"(x, digits = NULL, quote = TRUE, na.print = NULL, print.gap = NULL, right = FALSE, max = NULL, useSource = TRUE, ...)
digits
specifies the minimum
number of significant digits to be printed in values. The default,
NULL
, uses getOption("digits")
. (For the
interpretation for complex numbers see signif
.)
Non-integer values will be rounded down, and only values
greater than or equal to 1 and no greater than 22 are accepted.
character
s) should be printed with surrounding quotes.NA
values in printed output, or NULL
(see Details).NULL
(meaning 1), giving the spacing between adjacent
columns in printed vectors, matrices and arrays.max
specifies the approximate
maximum number of entries to be printed. The default, NULL
,
uses getOption("max.print")
; see that help page for more
details.digits
, currently for
digits >= 16
, the calculation of the number of significant
digits will depend on the platform's internal (C library)
implementation of sprintf() functionality.NA
s is to print NA
(without
quotes) unless this is a character NA
and quote =
FALSE
, when The same number of decimal places is used throughout a vector. This
means that 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. Decimal points are only
included if at least one decimal place is selected.
Attributes are printed respecting their class(es), using the values of
digits
to print.default
, but using the default values
(for the methods called) of the other arguments.
Option width
controls the printing of vectors, matrices and
arrays, and option deparse.cutoff
controls the printing of
language objects such as calls and formulae.
When the methods package is attached, print
will call
show
for R objects with formal classes if called
with no optional arguments.
print
, options
.
The "noquote"
class and print method. encodeString
, which encodes a character vector the way
it would be printed.
pi
print(pi, digits = 16)
LETTERS[1:16]
print(LETTERS, quote = FALSE)
M <- cbind(I = 1, matrix(1:10000, ncol = 10,
dimnames = list(NULL, LETTERS[1:10])))
utils::head(M) # makes more sense than
print(M, max = 1000) # prints 90 rows and a message about omitting 910
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