SPSS like variable view

This module gives a way to manipulate dataframes by changing column names and column classes. Also, datasets can be filtered based on user inputs.

variableView(input, output, session, dataset, dataName = "dat")

variableViewUI(id)

selectedVar(id)

Arguments

input, output, session	Standard module parameters.
dataset	A reactive table (for example a data.frame)
dataName	A character of length one giving the name of the dataset.
id	The id of the module.

Value

A reactive string representing the code to transform the dataset.

Details

selectedVar is an optional ui element which will show a summary of the variable selected in variableViewUI.

Examples

if (FALSE) {

library(DT)
data("tips", package = "reshape2")
data("diamonds", package = "ggplot2")

shinyApp(
  fluidPage(
    column(6, selectInput("dataset", "choose dataset",
           choices = c("mtcars", "tips", "diamonds")),
              variableViewUI("vv")),
    column(6, codeOutput("code"), selectedVar("vv"), DTOutput("filtered"))
  ),
  function(input, output, session){
    dataset <- reactive({get(input$dataset)})

    code <- callModule(variableView, "vv", dataset)
    output$code <- renderCode({ code() })
    output$filtered <- renderDT({
      dat <- isolate(dataset())
      eval(parse(text = code()))
      dat
   })
  },
  options = list(launch.browser = TRUE)
)
}