codeModules

About

This R package consists of several shiny modules that return R code in the form of reactive characters. All those modules represent common operations regarding

• Import of data (read.csv, read.xlsx, data(), …)
• Manipulation of data (rename columns, change column classes, filtering)
• export of data (write.csv, write.xlsx, …)

Usage

Always save the output from callModule into a variable when working with modules from this package. The outputs can then be parsed as R code using eval(parse(text = code())) or evalCode.

## context: server.R
code <- callModule(libData, id = "some_id", assignTo = "dt")
output$table <- renderTable({
  evalCode(code())
})

Implemented Modules

• libData: read data from R packages using utils::data
• readData: read data from a file using read.csv, read.xlsx or others depending on the file-extension.
• variableView Rename columns, filter data and change column types. The layout is oriented on the “variable view” in SPSS
• ggDownload Download ggplot with custom height, width and file-type (png, jpeg, …)
• downloadTable Download tables (usually data.frames) as csv, xlsx, rds.

Other functions

• renderCode/codeOutput Show code with syntax highlighting.
• evalCode Wrapper for eval(parse(text = .)) with error popups.