pExplorer: A widget to explore R packages
In tkWidgets: R based tk widgets

Description Usage Arguments Details Value Author(s) References See Also Examples

This widget allows users to explore R packages in the R library and try the example code.

pExplorer(pkgName = "", pkgPath = "", exclude = getExclude(), getFocus =
TRUE)
getPkgContents(pkgName, exclude = getExclude())
getFileContents(path, fileName)
getExclude()
getRPkgs(pkgPath)
hasDesc(pkgPath)
procRda(fileName)
procHelp(fileName)
procPDF(fileName)
procHTML(fileName)

`pkgPath`	`pkgPath` a character string for the path where R packages are loacted
`path`	`path` a character string for the path of a given file
`pkgName`	`pkgName` a character string for the name (including path) of an R package to be explored
`fileName`	`fileName` a character string for the name (including path) of a file of interest
`exclude`	`exclude` a vector of character strings containing the directory or file names that will not be available for explorering. Package names have to have a system file separator appanded to the end (e. g. "/" under Unix)
`getFocus`	`getFocus` a boolean indicating whether a widget should grab the focus

With or without a package name, the widget will have all the installed R package names in a dropdown list for user to select. As the default, the first element from list.files will be selected and the contents displayed if no package name is given.

getPkgContents gets the contents of a given R package and getFileContents gets the contents of a givan file.

getRPkgs, hasDesc, procRda, procHelp, procPDF, and procHTML are functions called by pExplorer to process different file or directory types.

The widget returns invisiable()

Jianhua Zhang

Documentation on R packages

eExplorer

    require("tkWidgets") || stop("tkWidgets not available")
    getPkgContents(.libPaths(), "tkWidgets")
    getFileContents(file.path(path.package("tkWidgets"), "help"),
        list.files(file.path(path.package("tkWidgets"), "help"))[1])
    if(interactive()){
        pExplorer()
    }