| # Define UI for dataset viewer app ---- |
| ui <- fluidPage( |
| |
| # App title ---- |
| titlePanel(paste("Spark Version", sparkR.version(), sep=":")), |
| |
| # Sidebar layout with a input and output definitions ---- |
| sidebarLayout( |
| |
| # Sidebar panel for inputs ---- |
| sidebarPanel( |
| |
| # Input: Selector for choosing dataset ---- |
| selectInput(inputId = "dataset", |
| label = "Choose a dataset:", |
| choices = c("rock", "pressure", "cars")), |
| |
| # Input: Numeric entry for number of obs to view ---- |
| numericInput(inputId = "obs", |
| label = "Number of observations to view:", |
| value = 10) |
| ), |
| |
| # Main panel for displaying outputs ---- |
| mainPanel( |
| |
| # Output: Verbatim text for data summary ---- |
| verbatimTextOutput("summary"), |
| |
| # Output: HTML table with requested number of observations ---- |
| tableOutput("view") |
| |
| ) |
| ) |
| ) |
