This help topic is for R version 2.9.0. For the current version of R, try https://stat.ethz.ch/R-manual/R-patched/library/base/html/notyet.html
NotYet {base}R Documentation

Not Yet Implemented Functions and Unused Arguments

Description

In order to pinpoint missing functionality, the R core team uses these functions for missing R functions and not yet used arguments of existing R functions (which are typically there for compatibility purposes).

You are very welcome to contribute your code ...

Usage

.NotYetImplemented()
.NotYetUsed(arg, error = TRUE)

Arguments

arg

an argument of a function that is not yet used.

error

a logical. If TRUE, an error is signalled; if FALSE; only a warning is given.

See Also

the contrary, Deprecated and Defunct for outdated code.

Examples

require(graphics)
require(stats)
plot.mlm         # to see how the "NotYetImplemented"
                 # reference is made automagically
try(plot.mlm())

barplot(1:5, inside = TRUE) # 'inside' is not yet used

[Package base version 2.9.0 ]