stdType: Provide Default Behavior for listSelect Helper Functions
In tkWidgets: R based tk widgets

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

The function listSelect takes two functions which define how the type information and content of R objects will be shown on the widget created by listSelect. Functions stdType() and stdView() provide the default behavior.

1 2	stdType(toCheck) stdView(toView)

toCheck, toView

arbitrary R object.

These functions can be viewed as exmaples of defining functions for the typeFun and valueFun arguments of the listSelect function.

stdType() returns a character string describing the type of the R object.

stdView()

Jianhua Zhang

listSelect

stdType(123)
stdType("What am I")

str(mydf <- data.frame(x = 2:8, ch = letters[1:7]))
stdType(mydf)# "list"
stdType(stdType)

if(interactive()) {## stdView() needs UI:
  stdView(1:10)
  stdView(mydf)
 }