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shinydataviewer

shinydataviewer provides a reusable Shiny module for viewing tabular data with a searchable table and a variable summary sidebar inspired by the Positron data viewer.

Installation

Install shinydataviewer from CRAN:

install.packages("shinydataviewer")

You can install the development version from GitHub:

pak::pak("Ryan-W-Harrison/shinydataviewer")

Package interface

shinydataviewer is designed to be used as a reusable Shiny module. The main exported functions are:

• data_viewer_ui(id)
• data_viewer_server(id, data)
• data_viewer_card_ui(id, title = NULL)
• summarize_columns(df)

data should be a reactive expression that returns a data.frame. Supported column classes are numeric, integer, character, factor, logical, Date, and POSIXct/POSIXt.

Minimal module example

Use the module directly when you want the viewer layout to manage its own main table region:

library(shiny)
library(bslib)
library(shinydataviewer)

ui <- page_fillable(
  theme = bs_theme(version = 5),
  data_viewer_ui("viewer")
)

server <- function(input, output, session) {
  data_viewer_server(
    "viewer",
    data = reactive(iris)
  )
}

shinyApp(ui, server)

Embedded card example

Use data_viewer_card_ui() when the viewer needs to live inside a larger dashboard or reporting layout:

library(shiny)
library(bslib)
library(shinydataviewer)

ui <- page_fillable(
  theme = bs_theme(version = 5),
  layout_columns(
    col_widths = c(4, 8),
    card(
      card_header("Context"),
      card_body("Supporting content goes here.")
    ),
    card(
      card_header("Dataset"),
      card_body(
        fill = TRUE,
        data_viewer_card_ui("viewer", title = NULL, full_screen = FALSE)
      )
    )
  )
)

server <- function(input, output, session) {
  data_viewer_server(
    "viewer",
    data = reactive(mtcars)
  )
}

shinyApp(ui, server)

An additional runnable example is included at inst/examples/embedded-card-example.R.

Theming and branding

The viewer styles are attached as a package dependency and use Bootstrap 5 theme variables instead of fixed colors. In practice, that means the module will follow the active bslib theme and should pick up branding supplied through bs_theme() or a brand.yml-driven theme without additional module-specific configuration.

ui <- page_fillable(
  theme = bs_theme(
    version = 5,
    brand = "brand.yml"
  ),
  data_viewer_card_ui("viewer")
)

Data summary helper

If you want access to the same summary data used by the module’s variable panel, you can call summarize_columns() directly:

summarize_columns(iris)

The returned data frame has one row per input column. Its summary_stats and distribution_data list-columns contain the same precomputed payloads used by the sidebar cards, including compact statistics, histogram bins, and top-level categorical counts.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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