ref {lobstr}

Display tree of references

Description

This tree display focusses on the distinction between names and values. For each reference-type object (lists, environments, and optional character vectors), it displays the location of each component. The display shows the connection between shared references using a locally unique id.

Usage

ref(..., character = FALSE)

Arguments

...

One or more objects

character

If TRUE, show references from character vector in to global string pool

See Also

Other object inspectors: ast(), sxp()

Examples

x <- 1:100
ref(x)

y <- list(x, x, x)
ref(y)
ref(x, y)

e <- new.env()
e$e <- e
e$x <- x
e$y <- list(x, e)
ref(e)

# Can also show references to global string pool if requested
ref(c("x", "x", "y"))
ref(c("x", "x", "y"), character = TRUE)