The example allows you to upload .RData files. The approach with load and get allows you to assign the loaded data to a variable name of your choice. For the matter of the example being "standalone" I inserted the top section that stores two vectors to your disk in order to load and plot t...
It is also possible to have an user upload csv's to your Shiny app. The code below shows a small example on how this can be achieved. It also includes a radioButton input so the user can interactively choose the separator to be used.
library(shiny)
library(DT)
# Define UI
ui <- shinyUI(flui...