Interactive variable selection dialog

Opens an interactive selection dialog and returns an expression that can directly be used in R code.

Usage

selectVarDlg(x, ...)

# Default S3 method
selectVarDlg(x, useIndex = FALSE, ...)

# S3 method for class 'numeric'
selectVarDlg(x, ...)

# S3 method for class 'factor'
selectVarDlg(x, ...)

# S3 method for class 'character'
selectVarDlg(x, ...)

# S3 method for class 'data.frame'
selectVarDlg(x, ...)

Arguments

x

An R object.

...

Additional arguments passed to methods.

useIndex

Logical. Should indices instead of values be returned? Only used for the default method.

Value

Invisibly returns a character string containing the generated R expression.

Details

Depending on the input type, different expressions are generated:

- vectors: `c(...)` - numeric vectors: index selection - factors/characters: ` - data frames: column selection

The generated expression is automatically copied to the clipboard.

The function uses [utils::select.list()] with `graphics = TRUE` for interactive selection.

If no selection is made, an empty string is returned.

Examples

if (FALSE) { # \dontrun{

# Character vector
selectVarDlg(letters)

# Numeric vector
selectVarDlg(1:10)

# Factor
selectVarDlg(factor(c("A", "B", "C")))

# Data frame columns
selectVarDlg(mtcars)

} # }