Quick overview of numeric or categorical variables
Quick overview of numeric or categorical variables
This function was inspired by the excellent skimr package for R. See the Details and Examples sections below, and the vignettes on the modelsummary website:
Supported object types: "default", "html", "markdown", "latex", "latex_tabular", "typst", "data.frame", "tinytable", "gt", "kableExtra", "huxtable", "flextable", "DT", "jupyter". The "modelsummary_list" value produces a lightweight object which can be saved and fed back to the modelsummary function.
The "default" output format can be set to "tinytable", "kableExtra", "gt", "flextable", "huxtable", "DT", or "markdown"
If the user does not choose a default value, the packages listed above are tried in sequence.
Warning: Users should not supply a file name to the output argument if they intend to customize the table with external packages. See the 'Details' section.
LaTeX compilation requires the booktabs and siunitx packages, but siunitx can be disabled or replaced with global options. See the 'Details' section.
type: String. Variables to summarize: "all", "numeric", "categorical", "dataset"
fmt: how to format numeric values: integer, user-supplied function, or modelsummary function.
Integer: Number of decimal digits
User-supplied functions:
Any function which accepts a numeric vector and returns a character vector of the same length.
modelsummary functions:
fmt = fmt_significant(2): Two significant digits (at the term-level)
fmt = fmt_sprintf("%.3f"): See ?sprintf
fmt = fmt_identity(): unformatted raw values
title: string. Cross-reference labels should be added with Quarto or Rmarkdown chunk options when applicable. When saving standalone LaTeX files, users can add a label such as \\label{tab:mytable} directly to the title string, while also specifying escape=FALSE.
notes: list or vector of notes to append to the bottom of the table.
align: A string with a number of characters equal to the number of columns in the table (e.g., align = "lcc"). Valid characters: l, c, r, d.
"l": left-aligned column
"c": centered column
"r": right-aligned column
"d": dot-aligned column. For LaTeX/PDF output, this option requires at least version 3.0.25 of the siunitx LaTeX package. See the LaTeX preamble help section below for commands to insert in your LaTeX preamble.
escape: boolean TRUE escapes or substitutes LaTeX/HTML characters which could prevent the file from compiling/displaying. TRUE escapes all cells, captions, and notes. Users can have more fine-grained control by setting escape=FALSE and using an external command such as: modelsummary(model, "latex") |> tinytable::format_tt(tab, j=1:5,escape=TRUE)
by: Character vector of grouping variables to compute statistics over.
fun_numeric: Named list of funtions to apply to each numeric column of data. If fun_numeric includes "Histogram" or "Density", inline plots are inserted. This argument is only used when type="numeric" or "all".
...: all other arguments are passed through to the table-making functions tinytable::tt , kableExtra::kbl , gt::gt , DT::datatable , etc. depending on the output argument. This allows users to pass arguments directly to datasummary in order to affect the behavior of other functions behind the scenes.
The behavior of modelsummary can be modified by setting global options. In particular, most of the arguments for most of the package's functions cna be set using global options. For example:
modelsummary supports 6 table-making packages: tinytable, kableExtra, gt, flextable, huxtable, and DT. Some of these packages have overlapping functionalities. To change the default backend used for a specific file format, you can use ' the options function:
modelsummary can use two sets of packages to extract information from statistical models: the easystats family (performance and parameters) and broom. By default, it uses easystats first and then falls back on broom in case of failure. You can change the order of priorities or include goodness-of-fit extracted by both packages by setting:
options(modelsummary_get = "easystats")
options(modelsummary_get = "broom")
options(modelsummary_get = "all")
Formatting numeric entries
By default, LaTeX tables enclose all numeric entries in the \num{} command from the siunitx package. To prevent this behavior, or to enclose numbers in dollar signs (for LaTeX math mode), users can call:
When creating LaTeX via the tinytable backend (default in version 2.0.0 and later), it is useful to include the following commands in the LaTeX preamble of your documents. These commands are automatically added to the preamble when compiling Rmarkdown or Quarto documents, except when the modelsummary() calls are cached.
dat <- mtcars
dat$vs <- as.logical(dat$vs)dat$cyl <- as.factor(dat$cyl)datasummary_skim(dat)datasummary_skim(dat, type ="categorical")
References
Arel-Bundock V (2022). “modelsummary: Data and Model Summaries in R.” Journal of Statistical Software, 103(1), 1-23. tools:::Rd_expr_doi("10.18637/jss.v103.i01") .'