One of the main features of the tbl_df class is the printing:
Tibbles only print as many rows and columns as fit on one screen, supplemented by a summary of the remaining rows and columns.
Tibble reveals the type of each column, which keeps the user informed about
whether a variable is, e.g., <chr> or <fct> (character versus factor).
Printing can be tweaked for a one-off call by calling print() explicitly
and setting arguments like n and width. More persistent control is
available by setting the options described below.
As of tibble 3.1.0, printing is handled entirely by the pillar package.
If you implement a package that extend tibble,
the printed output can be customized in various ways.
See vignette("extending", package = "pillar") for details.
# S3 method for tbl_df
print(x, ..., n = NULL, width = NULL, n_extra = NULL)# S3 method for tbl_df
format(x, ..., n = NULL, width = NULL, n_extra = NULL)
Object to format or print.
Other arguments passed on to individual methods.
Number of rows to show. If NULL, the default, will print all rows
if less than option tibble.print_max. Otherwise, will print
tibble.print_min rows.
Width of text output to generate. This defaults to NULL, which
means use getOption("tibble.width") or (if also NULL)
getOption("width"); the latter displays only the columns that fit on one
screen. You can also set options(tibble.width = Inf) to override this
default and always print all columns, this may be slow for very wide tibbles.
Number of extra columns to print abbreviated information for,
if the width is too small for the entire tibble. If NULL, the default,
will print information about at most tibble.max_extra_cols extra columns.
The following options are used by the tibble and pillar packages
to format and print tbl_df objects.
Used by the formatting workhorse trunc_mat() and, therefore,
indirectly, by print.tbl().
tibble.print_max: Row number threshold: Maximum number of rows printed.
Set to Inf to always print all rows. Default: 20.
tibble.print_min: Number of rows printed if row number threshold is
exceeded. Default: 10.
tibble.width: Output width. Default: NULL (use width option).
tibble.max_extra_cols: Number of extra columns printed in reduced form.
Default: 100.
pillar.bold: Use bold font, e.g. for column headers? This currently
defaults to FALSE, because many terminal fonts have poor support for
bold fonts.
pillar.subtle: Use subtle style, e.g. for row numbers and data types?
Default: TRUE.
pillar.subtle_num: Use subtle style for insignificant digits? Default:
FALSE, is also affected by the pillar.subtle option.
pillar.neg: Highlight negative numbers? Default: TRUE.
pillar.sigfig: The number of significant digits that will be printed and
highlighted, default: 3. Set the pillar.subtle option to FALSE to
turn off highlighting of significant digits.
pillar.min_title_chars: The minimum number of characters for the column
title, default: 15. Column titles may be truncated up to that width to
save horizontal space. Set to Inf to turn off truncation of column
titles.
pillar.min_chars: The minimum number of characters wide to
display character columns, default: 0. Character columns may be
truncated up to that width to save horizontal space. Set to Inf to
turn off truncation of character columns.
# NOT RUN {
print(as_tibble(mtcars))
print(as_tibble(mtcars), n = 1)
print(as_tibble(mtcars), n = 3)
print(as_tibble(iris), n = 100)
print(mtcars, width = 10)
mtcars2 <- as_tibble(cbind(mtcars, mtcars), .name_repair = "unique")
print(mtcars2, n = 25, n_extra = 3)
# }
# NOT RUN {
print(nycflights13::flights, n_extra = 2)
print(nycflights13::flights, width = Inf)
# }
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