print_options: Set global printing method for data.table
In tidyfst: Tidy Verbs for Fast Data Manipulation

print_options

R Documentation

Set global printing method for data.table

Description

This function allow user to define how data.table is printed.

Usage

print_options(
  topn = 5,
  nrows = 100,
  class = TRUE,
  row.names = TRUE,
  col.names = "auto",
  print.keys = TRUE,
  trunc.cols = FALSE
)

Arguments

`topn`	The number of rows to be printed from the beginning and end of tables with more than `nrow` rows.
`nrows`	The number of rows which will be printed before truncation is enforced.
`class`	If `TRUE`, the resulting output will include above each column its storage class (or a self-evident abbreviation thereof).
`row.names`	If `TRUE`, row indices will be printed.
`col.names`	One of three flavours for controlling the display of column names in output. `"auto"` includes column names above the data, as well as below the table if `nrow(x) > 20`. `"top"` excludes this lower register when applicable, and `"none"` suppresses column names altogether (as well as column classes if `class = TRUE`.
`print.keys`	If `TRUE`, any `key` currently assigned to `x` will be printed prior to the preview of the data.
`trunc.cols`	If `TRUE`, only the columns that can be printed in the console without wrapping the columns to new lines will be printed (similar to `tibbles`).

Details

Notice that tidyfst has a slightly different printing default for data.table, which is it always prints the keys and variable class (not like data.table).

Value

None. This function is used for its side effect of changing options.

Examples


iris %>% as.data.table()
print_options(topn = 3,trunc.cols = TRUE)
iris %>% as.data.table()

# set all settings to default in tidyfst
print_options()
iris %>% as.data.table()

tidyfst documentation built on Sept. 16, 2024, 9:06 a.m.