You can install shiny directly from github using the devtools package. In order to install shiny you'll also need to be configured to build R packages from source. To install devtools and verify that you can build packages from source:
install.packages("devtools")
library(devtools)
has_devel()
If the has_devel function produces an error then you'll need to install some additional components required to build packages from source:
- Windows – Install the appropriate Rtools binaries for your version of R.
- MacOS X – Install the Command Line Tools for Xcode.
- Debian/Ubuntu – sudo apt-get install r-base-dev
Next, you need to install a modified version of the websockets package from github:
install_github("R-websockets", "jcheng5")
Finally, you can install the shiny package from github:
install_github("shiny", "rstudio")
To verify that Shiny is installed correctly you can run an example application:
library(shiny)
runExample("01_hello")
If everything is installed and working correctly a browser will open and navigate to the running application.
Screenshot
Run the example
library(shiny)
runExample("hello")
ui.R
library(shiny)
shinyUI(
pageWithSidebar(
headerPanel(
h1("Hello shiny!")
),
sidebarPanel(
numericInput("obs",
"Number of observations:",
min = 0,
max = 10000,
value = 500)
),
mainPanel(
plotOutput("plot")
)
)
)
server.R
library(shiny)
shinyServer(function(input, output) {
output$plot <- reactivePlot(function() {
obs <- as.integer(input$obs)
hist(rnorm(obs))
})
})
Reactive