gt - CHEAT SHEET

Oct 14, 2026

Upload by asda1da

Cheat sheet for the R gt package, focused on creating and styling informative tables from data frames. Covers installation, structuring techniques such as headers/footers, stubs, row grouping, and column spanners, plus styling with tab_style, tab_options, opt_stylize, and font/table-wide themes. Provides examples for building gt tables and formatting data values, including date/time, numeric formats (decimal, integer, percent, scientific), and graphical formatting like images, icons, flags, colorization via data_color, and interactive nanoplots.

LanguageEnglish

CategoryPresentations

FormatPDF

Pages1

AccessFree to download

Introduction

Installation

Adding Structure

Styling the Table

Creating a gt Table

Formatting Data Values

Numeric Formatting

Formatting Involving Graphics

Introduction The resulting tables can be easily displayed in Shiny apps and Quarto documents. And there are quite a few output formats for your tables, including HTML, LaTeX, RTF, and Word. INSTALLATION install.packages("gt") gt : : CHEAT SHEET The gt package allows you to make beautiful, informative table displays from R data frames. The package provides functions for you to structure, format, and style the table to your heart's content. Adding Structure ADDING A HEADER AND FOOTER tab_header() → add title and optional subtitle, can use md() or html() helpers tab_source_note() → add text to table footer (above helpers can be used here too) tab_footnote() → add footnote to footer; needs a location (see Styling... for this) ADDING A STUB AND ROW GROUPS gt(rowname_col = "column") → assign a column with row names to the stub gt(groupname_col = "column") → use column with categoricals to group rows ADDING COLUMN SPANNERS tab_spanner() → add spanner over colstab_spanner_delim() → use delimited column names to set up multiple spanners Styling the Table ONE FUNCTION FOR STYLING EVERYWHERE tab_style() → apply styles to various locations THE DIFFERENT LOCATIONS OFA TABLE THREE WAYS TO STYLE cell_fill() → fill location with color cell_text() → style location's text cell_borders() → set up borders and define styles for them YOU ALSO HAVE OTHER OPTIONS tab_options() → many, many options for styling that applies to whole table opt_stylize() → set a theme, 36 looks opt_table_font() → set a font to use gt_tbl |> tab_style(style = list(styles), locations = list( locations )) Creating a gt Table table body display HTML table OUTPUT BASIC EXAMPLE WITH SAMPLE DATA column labels SAMPLE DATASETS countrypops, sza, gtcars, sp500, films, pizzaplace, exibble, towny, peeps + more Formatting Data Values FORMATTING BASICS DATE/TIME FORMATTING Formatting functions have the columns and rows options to specify which body values should be formatted. columns = E* rows = E* format all values columns = "C"rows = E* format all C values columns = "C"rows = 1:2 A B C format some C values columns = E* rows = 1:2 format rows of values A B C NUMERIC FORMATTING 1 fmt_number() → decimal values 2 fmt_integer() → integer values 3 fmt_percent() → percentage values 4 fmt_scientific() → scientific not'n common options: decimals in 1,3,4,5 for fixed \# of decimals / scale_by in 1,2,4,5 to multiply number before formatting / accounting in 1,2,3 to display in that notation / suffixing in 1,2 to condense large numbers / locale in 1–5 to localize formatted values to language/region. FORMATTING INVOLVING GRAPHICS fmt_date() → format with a date style preset iso: "2000-02-29" (the default) wday_month_day_year: "Tuesday, February 29, 2000" wd_m_day_year: "Tue, Feb 29, 2000" wday_day_month_year: "Tuesday 29 February 2000" month_day_year: "February 29, 2000"fmt_time() → format with a time style preset iso: "14:35:00" (the default) h_m_s_p: "2:35:00 PM" h_m_p: "2:35 PM" fmt_datetime() → format with date/time style presets or with format option for more control fmt_image() → insert images to cells with filenames; path / file_pattern help resolve fmt_icon() → add icons to cells containing FontAwesome short icon names (e.g., "cat") fmt_flag() → add flag icons to cells w/ 2-or 3-letter country codes (e.g., "LU" or "LUX") common to all: cells may have multiple instances of replaceable text for these formatters, they must be comma-separated though. E* means everything() 5 fmt_engineering() → engineering not'n create GT object COLORIZING BODY CELLS data_color() → apply color to a series of cells according to their value domain = NULL palette = "Reds" coloring to range of data domain = c(0, 9) palette = "Reds" setting a fixed range domain = c(0, 6) na_color = "blue" setting colors for NA/OOB values ADDING NANOPLOTS cols_nanoplot() → convert ser

FAQs

What is the gt package used for?

The gt package builds beautiful, informative table displays from R data frames. It includes functions to structure, format, and style tables.

How can a table be structured with headers, footers, and stubs?

Use tab_header() for a title/subtitle, tab_source_note() for footer text, and tab_footnote() for footnotes. Add a stub with gt(rowname_col = "column") and group rows with gt(groupname_col = "column").

Which functions help format different kinds of table values?

Use formatting helpers like fmt_number(), fmt_integer(), fmt_percent(), and fmt_scientific() for numeric types, and fmt_date(), fmt_time(), or fmt_datetime() for date/time. For graphics, use fmt_image(), fmt_icon(), and fmt_flag(), plus data_color() and cols_nanoplot() for colorization and interactive nanoplots.

Oct 14, 2026

Upload by asda1da