| check.options | R Documentation |
Utility function for setting options with some consistency checks.
The attributes of the new settings in new are
checked for consistency with the model (often default)
list in name.opt.
check.options(new, name.opt, reset = FALSE, assign.opt = FALSE,
envir = .GlobalEnv,
check.attributes = c("mode", "length"),
override.check = FALSE)
new |
a named list |
name.opt |
character with the name of R object containing the default list. |
reset |
logical; if |
assign.opt |
logical; if |
envir |
the |
check.attributes |
character containing the attributes which
|
override.check |
logical vector of length |
A list of components with the same names as the one called
name.opt.
The values of the components are changed from the new list,
as long as these pass the checks (when these are not overridden
according to override.check).
Option "names" is exempt from all the checks or warnings, as in
the application it can be NULL or a variable-length character
vector.
Martin Maechler
ps.options and pdf.options,
which use check.options.
(L1 <- list(a = 1:3, b = pi, ch = "CH")) check.options(list(a = 0:2), name.opt = "L1") check.options(NULL, reset = TRUE, name.opt = "L1")
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.
