Description Usage Arguments Value
packageEnv
is a slight modification from
topenv
, which returns the top environment,
which in the case of development packages is the
environment into which the source files are loaded by
load_all
.
topns_name
: the top namespace is is not
necessarily the namespace where topns_name
is
effectively called. This is useful for packages that
define functions that need to access the calling
namespace, even from calls nested into calls to another
function from the same package – in which case
topenv
would not give the desired environment.
topns
returns the runtime top namespace, i.e. the
namespace of the top calling package, possibly skipping
the namespace where topns
is effectively called.
This is useful for packages that define functions that
need to access the calling namespace, even from calls
nested into calls to another function from the same
package – in which case topenv
would not give the
desired environment.
packageName
returns the current package's name. It
was made internal from version 0.16, since the package
utils exported its own
packageName
function in R-3.0.0.
str_ns
formats a package environment/namespace for
log/info messages.
packagePath
returns the current package's root
directory, which is its installation/loading directory in
the case of an installed package, or its source directory
served by devtools.
isPackageInstalled
checks if a package is
installed.
as_package
is enhanced version of
as.package
, that is not exported
not to mask the original function. It could eventually be
incorporated into devtools
itself. Extra arguments
in ...
are passed to find.package
.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | packageEnv(pkg, skip = FALSE, verbose = FALSE)
topns_name(n = 1L, strict = TRUE, unique = TRUE)
topns(strict = TRUE)
packageName(envir = packageEnv(), .Global = FALSE,
rm.prefix = TRUE)
str_ns(envir = packageEnv())
packagePath(..., package = NULL, lib.loc = NULL)
isPackageInstalled(..., lib.loc = NULL)
as_package(x, ..., quiet = FALSE, extract = FALSE)
|
pkg |
package name. If missing the environment of the runtime caller package is returned. |
skip |
a logical that indicates if the calling namespace should be skipped. |
verbose |
logical that toggles verbosity |
n |
number of namespaces to return |
strict |
a logicical that indicates if the global environment should be considered as a valid namespace. |
unique |
logical that indicates if the result should be reduced to contain only one occurence of each namespace. |
envir |
environment where to start looking for a package name. The default is to use the runtime calling package environment. |
.Global |
a logical that indicates if calls from the global
environment should throw an error ( |
rm.prefix |
logical that indicates if an eventual prefix 'package:' should be removed from the returned string. |
package |
optional name of an installed package |
lib.loc |
path to a library of R packages where to search the package |
... |
arguments passed to |
x |
package specified by its installation/development path or its name
as |
quiet |
a logical that indicate if an error should be thrown if a
package is not found. It is also passed to |
extract |
logical that indicates if DESCRIPTION of package source files should be extracted. In this case there will be no valid path. |
packageEnv
returns an environment
a character string
a character string
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.