Provide Default Behavior for listSelect Helper Functions

Description

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.

Usage

stdType(toCheck)
stdView(toView)

Arguments

Details

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

Value

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

stdView()

Author(s)

Jianhua Zhang

See Also

listSelect

Examples

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)
 }