shinyHierarchy

Hierarchical slicer-style input for Shiny, inspired by Power BI date hierarchies.

Features

• Multi-level tree from a data frame and levels
• Inline Power BI-style slicer or compact dropdown
• Optional search and select-all row
• Cascading checkboxes with tri-state parents
• Structured Shiny value (schema_version = 1) with resolved, rollup, explicit, and summary

Example

library(shiny)
library(shinyHierarchy)

df <- data.frame(
  year = c(2026, 2026),
  month = c("January", "January"),
  day = c(1, 2)
)

ui <- fluidPage(
  hierarchyInput(
    "dates",
    "Año, Mes, Día",
    df,
    c("year", "month", "day"),
    display = "inline"
  )
)

server <- function(input, output, session) {
  observe(print(hierarchyResolved(input$dates)))
}

shinyApp(ui, server)

Run the packaged example with shiny::runApp(system.file("examples", package = "shinyHierarchy")).

The same component works with arbitrary levels, for example c("country", "department", "city") or c("category", "subcategory", "product"). Search is disabled by default and can be enabled with search = TRUE for large hierarchies.

Security

Values received through input$... are controlled by the browser. Validate selected ids against the server-side hierarchy and user permissions before using them to access sensitive data. Component dimensions accept only safe CSS lengths such as "350px", "100%", or "20rem".