expressionItem: Item for typing in R expressions. These are eval-parsed in...

In traitr: An interface for creating GUIs modeled in part after traits UI module for python.

Description

Item for typing in R expressions. These are eval-parsed in .GlobalEnv prior to return

Usage

expressionItem(value = "", name, label = name, help = "", tooltip = "",
  attr, model, editor, ...)

Arguments

value	Default value for the model
name	Required name for object. Names should be unique within a group of items
label	Optional label, default value is the name
help	Optional help string
tooltip	Optional tooltip to display
attr	A list of attributes to pass to widget on construction. Eg. attr=list(size=c(100,200))
model	Optional model. Useful if one wishes to use same model for multiple views
editor	Specification of editor (a view) to override default
...	Passed to parent proto object during call to proto

Value

A proto object. Call obj$show_help() to view its methods and properties.

See Also

numericItem, integerItem, stringItem, as these are similar, but also validate the final results

traitr documentation built on May 2, 2019, 3:32 p.m.