miniGUIhelpers {miniGUI}

Utility functions

Description

Some utility functions that are not exported

Usage

  miniGUIgetFormals(f)
  miniGUIcallEval(f,p,e)
  miniGUIoutput(x,mess="\nminiGUI output: \n")

Arguments

f

An R\ function.

p

a list with all the parameters f requires.

e

environment where the parameters p of f are evaluated. By default .GlobalEnv .

x

An R\ object to print.

mess

a string with a brief message that is printed before x.

Details

These functions are internal functions that helps building the GUI map. addMenusCmd adds a menu to the main miniGUI frame. miniGUIgetFormals gets the parameter list of the function f filtering ellipsis. miniGUIcallEval performs the evaluation f when the arguments are set to those of p. miniGUIoutput is used to print out the result of the computation.

At the present moment, miniGUIeval is the same as the function miniGUIcallEval, while miniGUIEnvir is used to store miniGUI internal data. In particular, miniGUIEnvir$miniGUIans stores the result of the last computation made by a call to any of the miniGUI menu functions or any function widget created with by the functions makeWidgetCmd or mapFuncToWidget. On the other hand miniGUIEnvir$miniGUIData stores information and parameters required to compute function widgets. In ordet to do so, function storageName is used to avoid name collisons. The functions setMiniGUIData setMiniGUIans, getMiniGUIData, getMiniGUIans are used to set and get data from miniGUIEnvir$miniGUIData and miniGUIEnvir$miniGUIans resp..

Author(s)

Jorge Luis Ojeda Cabrera ([e-mail]).

See Also

miniGUI, makeWidgetCmd, mapFuncToWidget, tcltk.