library(shiny)
library(datasets)
# Define server logic required to summarize and view the selected
# dataset
function(input, output) {
# Return the requested dataset
datasetInput <- reactive({
switch(input$dataset,
"rock" = rock,
"pressure" = pressure,
"cars" = cars)
})
# Generate a summary of the dataset
output$summary <- renderPrint({
dataset <- datasetInput()
summary(dataset)
})
# Show the first "n" observations
output$view <- renderTable({
head(datasetInput(), n = input$obs)
})
}
library(shiny)
# Define UI for dataset viewer application
fluidPage(
# Application title
titlePanel("Shiny Text"),
# Sidebar with controls to select a dataset and specify the
# number of observations to view
sidebarLayout(
sidebarPanel(
selectInput("dataset", "Choose a dataset:",
choices = c("rock", "pressure", "cars")),
numericInput("obs", "Number of observations to view:", 10)
),
# Show a summary of the dataset and an HTML table with the
# requested number of observations
mainPanel(
verbatimTextOutput("summary"),
tableOutput("view")
)
)
)