README.md

In vpnagraj/shinylist: HTML lists from R input

shinylist

Summary

shinylist is an htmlwidget for generating HTML lists from R output. The package includes a shinylist() function that uses custom JavaScript to parse a vector and output each element as a list item. This is particularly of use in the context of Shiny app development. The renderList() and listOutput() can be used respectively in the server and ui Shiny components.

Installation

devtools::install_github("vpnagraj/shinylist")

Usage

From the R console, create an HTML list by passing a vector (either character or numeric) to the shinylist() function:

library(shinylist)
shinylist(mtcars$mpg)
shinylist(rownames(mtcars), ordered = TRUE)

For use within a Shiny app, include a call to shinylist() inside of a renderList() function that has a corresponding listOutput() element:

library(shiny)
library(shinylist)
library(dplyr)
library(ggplot2movies)

movies <-
    movies %>%
    filter(!is.na(budget))

server <- function(input, output) {

    output$movietitles<- renderList({

            dat <-
                movies %>%
                filter(budget >= input$budget) %>%
                arrange(desc(rating)) %>%
                select(title) 

            shinylist(dat$title)

    })

}

ui <- fluidPage(titlePanel("Movie Budgets > $100,000,000"),
    sidebarLayout(
        sidebarPanel(
            sliderInput(
                inputId = "budget", 
                label = "Budget", 
                min = 100e6, 
                max = max(movies$budget), 
                value = 100e6,
                animate =  animationOptions(interval= 500))
        ),
        mainPanel(
            listOutput("movietitles")
        )
    )
)

shinyApp(ui = ui, server = server)

vpnagraj/shinylist documentation built on June 24, 2019, 4:26 p.m.