set_formatter: Set column formatter functions

In davidgohel/flextable: Functions for Tabular Reporting

Set column formatter functions

Description

Apply formatter functions to column keys.

Functions should have a single argument (the vector) and should return the formatted values as a character vector.

Usage

set_formatter(x, ..., values = NULL, part = "body")

Arguments

x	a flextable object
...	Name-value pairs of functions, names should be existing col_key values
values	format functions, If values is supplied argument ... is ignored. It can be a list of name-value pairs of functions, names should be existing col_key values. If values is a single function, it will be applied to each column.
part	part of the table (one of 'body' or 'header' or 'footer') where to apply the formatter functions.

See Also

Other cells formatters: colformat_char(), colformat_date(), colformat_datetime(), colformat_double(), colformat_image(), colformat_int(), colformat_lgl(), colformat_num()

Examples

ft <- flextable(head(iris))
ft <- set_formatter(
  x = ft,
  Sepal.Length = function(x) sprintf("%.02f", x),
  Sepal.Width = function(x) sprintf("%.04f", x)
)
ft <- theme_vanilla(ft)
ft

davidgohel/flextable documentation built on June 11, 2025, 10:36 p.m.