showStructure: Describe the structure of an object
In splus2R: Supplemental S-PLUS functionality in R

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

Describe the structure of an object, recursively.

1 2	showStructure(x, maxlen = 20, describeAttributes = TRUE, short = NULL, prefix = "", attri = FALSE, ...)

`x`	any object
`maxlen`	integer; if `x` is a list with more than `maxlen` components, only the names are printed. This may be a vector, in which case the `K`th element is used at the `K`th level of recursion.
`describeAttributes`	logical; if `FALSE` then only the names of attributes are printed; the structure of the attributes is not shown.
`short`	`NULL` or logical; this may be used by methods, to indicate whether to print a shorter description. It is currently used by `bdFrame` and `bdVector` methods
`prefix`	for internal use in recursive calls. This is used for indenting in recursive calls.
`attri`	for internal use in recursive calls. This is `TRUE` if the curent object being described is a list of attributes.
`...`	Additional argument that may be passed to methods; not currently used.

This supports recursive objects, using recursive calls. Each level of recursion is indented two additional spaces. List components are shown with $, slots with @, and attributes with &.

This prints a description; it doesn't return anything useful.

Tim Hesterberg

names, str.

a <- c(m=1, n=2)
b <- diag(1:3)
cc <- cbind(a=1:5, b=2:6, c=letters[1:5])
d <- data.frame(cc)
attr(d, "dup.row.names") <- TRUE
e <- ts(1:10, frequency = 4, start = c(1959, 2))
f <- list(a,b=b)
setClass("track", representation(x="numeric", y="numeric"))
g <- new("track", x=1:5, y=1:5)

showStructure(a)
showStructure(b)
showStructure(cc)
showStructure(d)
showStructure(e)
showStructure(f)
showStructure(g)  # prints with @ rather than $
showStructure(list(a=a, b=b))
showStructure(list(cc=cc, d, list(a,e)))