withRepos
From R.utils v2.0.0
by Henrik Bengtsson
Evaluate an R expression with repositories set temporarily
Evaluate an R expression with repositories set temporarily.
- Keywords
- programming, IO
Usage
withRepos(expr, repos="[[mainstream]]", ..., envir=parent.frame())
Arguments
- expr
- The R expression to be evaluated.
- repos
- A
character
vector
of repositories to use. - ...
- Additional arguments passed to
useRepos
(). - envir
- The
environment
in which the expression should be evaluated.
Value
- Returns the results of the expression evaluated.
See Also
Internally, eval
() is used to evaluate the expression.
See also options
() and install.packages
.
Examples
# Install from BioC related repositories only
withRepos(install.packages("edgeR"), repos="[[BioC]]")
# Install from CRAN or BioC related repositories only
withRepos(install.packages("edgeR"), repos=c("CRAN", "[[BioC]]"))
# Install from mainstream repositories only (same as previous)
withRepos(install.packages("edgeR"), repos="[[mainstream]]")
# Install from R-Forge and mainstream repositories only
withRepos(install.packages("R.utils"), repos="[[R-Forge]]")
Community examples
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