DependsList object for that
package which will include the dependencies for that matrix, which
ones are installed, which unresolved dependencies were found online,
which unresolved dependencies were not found online, and any R dependencies.
getDepList(depMtrx, instPkgs, recursive = TRUE, local = TRUE, reduce = TRUE, lib.loc = NULL)
pkgDepends(pkg, recursive = TRUE, local = TRUE, reduce = TRUE, lib.loc = NULL)package.dependenciesinstalled.packagesNULL indicates all library directories in the
user's .libPaths()."DependsList".
pkgDepends is a convenience function which wraps
getDepList and takes as input a package name. It will then
query installed.packages
and also generate a dependency
matrix, calling getDepList with this information and returning
the result. These functions will retrieve information about the dependencies of
the matrix, resulting in a DependsList object. This is a
list with four elements:
Installed but were found online. This list has element
names which are the URLs for the repositories in which packages
were found and the elements themselves are vectors of package
names which were found in the respective repositories. If
local = TRUE, the Found element will always be empty.
If recursive is TRUE, any package that is specified as a
dependency will in turn have its dependencies included (and so on),
these are known as indirect dependencies. If recursive is
FALSE, only the dependencies directly stated by the package will
be used.
If local is TRUE, the system will only look at the user's local
install and not online to find unresolved dependencies.
If reduce is TRUE, the system will collapse the fields in the
DependsList object such that a minimal set of dependencies
are specified (for instance if there was
foo, foo (>= 1.0.0), foo (>= 1.3.0), it would only return
foo (>= 1.3.0)).
installFoundDependspkgDepends("tools", local = FALSE)
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