### Install gt Development Version from GitHub Source: https://github.com/rstudio/gt/blob/master/README.md Install the latest development version of the gt package directly from its GitHub repository. This is useful for accessing the newest features or bug fixes. ```r devtools::install_github("rstudio/gt") ``` -------------------------------- ### HTML Table Output with Summary Rows Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/summary_rows.md Example of an HTML table generated by the gt package, showcasing summary rows and grouped data. ```html ``` -------------------------------- ### Install gt from CRAN Source: https://github.com/rstudio/gt/blob/master/README.md Use this command to install the stable version of the gt package from CRAN. ```r install.packages("gt") ``` -------------------------------- ### Create a gt Table from Data Source: https://github.com/rstudio/gt/blob/master/README.md This example demonstrates the basic usage of the gt package to create a table from a dataset. Ensure the 'gt' library is loaded and data is prepared. ```r library(gt) # Define the start and end dates for the data range start_date <- "2010-06-07" end_date <- "2010-06-14" # Create a gt table based on preprocessed ``` -------------------------------- ### HTML Table Rendering with fmt_auto() Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/fmt_auto.md This example shows the HTML output generated by `render_as_html()` when `fmt_auto()` has been applied. It highlights the automatic formatting of different numeric types. ```R cat(render_as_html(gt_tbl)) ``` ```html

	open	high	low	close
W02
2015-01-05	2054.44	2054.44	2017.34	2020.58
2015-01-06	2022.15	2030.25	1992.44	2002.61
2015-01-07	2005.55	2029.61	2005.55	2025.90
2015-01-08	2030.61	2064.08

integer	amt.usd	sold_EUR	real	real_small
100	$23.23	€3,465.20	23.45	23.45
8,000	$632.32	€8,743.30	0.23	352.4
4 × 10⁶	$236.34	€367.02	1.000 × 10⁻⁶	0.013
3 × 10⁸	$12.00	€23.74	2.332 × 10⁶	263.8

``` -------------------------------- ### Using summary_rows() without row groups (deprecated) Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/summary_rows.md This example demonstrates the deprecated usage of `gt::summary_rows()` when no row groups are defined. It will now raise an error, guiding users to `grand_summary_rows()` or to add row groups. ```r gt::summary_rows(gt::gt(dplyr::select(mtcars_short, gear), rownames_to_stub = TRUE), fns = "sum") ``` -------------------------------- ### Render Function Notation with LaTeX Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/fmt_markdown.md This example demonstrates rendering a function notation, f(ct), using LaTeX within an HTML context. It includes the KaTeX CSS link and the MathML/HTML representation of the function. ```html

f\left( {ct} \right)

``` -------------------------------- ### Apply a Predefined Style Theme with opt_stylize() Source: https://context7.com/rstudio/gt/llms.txt Quickly applies one of six preset visual styles combined with six color variations. Covers background colors, border styles, striping, and stub shading. ```r exibble |> gt(rowname_col = "row", groupname_col = "group") |> summary_rows( groups = "grp_a", columns = c(num, currency), fns = c("min", "max") ) |> opt_stylize( style = 6, color = "cyan", add_row_striping = TRUE ) ``` -------------------------------- ### Set Key and Subset Data with data.table Source: https://github.com/rstudio/gt/blob/master/tests/performance-monitoring/dplyr-known-good.md This example demonstrates how to set a key on a data.table for efficient subsetting. The `setkey` function prepares the data for fast lookups, and the subsequent subsetting operation `MT[.(6, 4)]` is equivalent to a more verbose `MT[cyl == 6 & gear == 4]` but significantly faster for large datasets. ```r setkey(MT, cyl, gear) MT[.(6, 4)] # Equivalent to MT[cyl == 6 & gear == 4] ``` -------------------------------- ### Example Word OOXML Output for gt Table Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/as_word.md This is an example of the Word OOXML output generated for a gt table. It includes elements for table captions, titles, and the table content itself, with specific formatting applied to each part. ```XML Table SEQ Table \* ARABIC 1 : TABLE TITLE table subtitle num ``` -------------------------------- ### Example Word OOXML Table Structure Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/as_word.md This is an example of the Word OOXML structure generated for a table. It includes definitions for table properties, rows, cells, and paragraphs within cells, specifying formatting like borders, spacing, fonts, and text content. ```XML row_1 grp_a ``` -------------------------------- ### Basic Decimal Alignment Example Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/cols_align_decimal.md Shows a table with a numeric column aligned to the right, demonstrating basic decimal alignment. Includes currency symbols, parentheses for negative values, and NA values. ```html $9,023 D ($284) E NA F $0 G ($123) H NA I $41 ``` -------------------------------- ### Render Fraction Formula in HTML Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/fmt_markdown.md This snippet demonstrates rendering a fraction and a function in HTML using KaTeX. It includes a link to the KaTeX CSS for proper styling, suitable for displaying mathematical formulas in web pages. ```html

\displaystyle rac{1}{t}f\left( t \right)

``` -------------------------------- ### Filter data.frame rows Source: https://github.com/rstudio/gt/blob/master/tests/performance-monitoring/dplyr-known-good.md This example demonstrates filtering rows from a data.frame based on multiple conditions using the `filter` function. ```r mtcars |> filter(cyl >= 6 & disp < 180) ``` -------------------------------- ### str_substitute Recycling Errors Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/utils.md Demonstrates errors that occur when recycling arguments in str_substitute. Ensure input vectors have compatible lengths for 'start' and 'end' arguments. ```R str_substitute(c("223", "223", "224"), c(1, 2), 2) ``` ```R str_substitute(c("223", "223", "224"), c(1), c(2, 3)) ``` ```R str_substitute(c("223", "223", "224", "225"), c(1, 2, 3, 4), c(2, 3)) ``` -------------------------------- ### Create Higher-Order Spanners with tab_spanner_delim() Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/tab_spanner_delim.md This example shows how to use tab_spanner_delim() to create multi-level column spanners. The delimited strings define the hierarchy and labels for the spanners. ```r gt_tbl %>% tab_spanner_delim(delim = ".") ``` -------------------------------- ### Render LaTeX Formula in Markdown Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/fmt_markdown.md Demonstrates rendering a LaTeX formula for a fraction within a Markdown context. Ensure KaTeX CSS is linked for proper display. ```html

\frac{{2as}}{{{{\left( {{s^2} + {a^2}} \right)}^2}}}

``` -------------------------------- ### Resolve rows by name in data_color() Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/data_color.md Shows how data_color() resolves rows by name, similar to fmt_number(). This example demonstrates an error when the specified row name does not exist. ```R fmt_number(gt_simple, rows = "Datsun 710", decimals = 6) ``` ```R data_color(gt_simple, rows = "Datsun 710") ``` -------------------------------- ### Render LaTeX Formulas in HTML Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/fmt_markdown.md Demonstrates how to render LaTeX formulas within HTML output using the gt package. Ensure the KaTeX library is linked for proper rendering. ```html

\sin \left( {at} \right) + at\cos \left( {at} \right)

``` -------------------------------- ### Render Trigonometric Function in Markdown Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/fmt_markdown.md Shows how to render a trigonometric function with arguments in Markdown using KaTeX. Includes linking the KaTeX CSS for rendering. ```html

t\cos \left( {at} \right)

``` -------------------------------- ### Retrieve Ordering Keys from Data.table in R Source: https://github.com/rstudio/gt/blob/master/tests/performance-monitoring/dplyr-known-good.md Use `key()` to get the names of the columns by which the data.table is currently ordered. This helps in understanding the current data structure. ```r key(MT) ``` -------------------------------- ### Render HTML Table with Rows Source: https://github.com/rstudio/gt/blob/master/tests/testthat/_snaps/rows_add.md This snippet demonstrates how to render a gt table as HTML. It includes examples of column headings and row data, including grouped rows. ```html

	num	char	fctr	date	time	datetime	currency
grp_a
row_1	1.111e-01	apricot	one	2015-01-15	13:35	2018-01-01 02:22	49.950
row_2	2.222e+00	banana	two	2015-02-15	14:40	2018-02-02 14:33	17.950
row_3	3.333e+01	coconut	three	2015-03-15	15:45	2018-03-03 03:44	1.390
row_4	4.444e+02	durian	four	2015-04-15	16:50	2018-04-04 15:55	65100.000
grp_b
row_5	5.550e+03	NA	five	2015-05-15	17:55	2018-05-05 04:00	1325.810

``` -------------------------------- ### Format date values with fmt_date() Source: https://context7.com/rstudio/gt/llms.txt Use fmt_date to format Date, POSIXt, or character date values. Supports 41 built-in date styles. Use info_date_style() to see all available styles. This example also demonstrates formatting a currency column. ```r sp500 | filter(date >= "2010-06-07", date <= "2010-06-14") | select(date, close) | gt() | fmt_date( columns = date, date_style = "wd_m_day_year" # e.g. "Monday, June 7, 2010" ) | fmt_currency(columns = close) ```