installPackages: install packages with minimum count

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install packages with minimum count

Description

Ensure that the most important packages in x are installed. "Importance" here is defined in the description of the minCount argument below.

Usage

installPackages(x, minCount, ...)
## S3 method for class 'findFn'
installPackages(x, minCount, ...) 
## S3 method for class 'packageSum'
installPackages(x, minCount, 
              repos = getOption("repos"), ...)

Arguments

x	either a character vector to be passed to install.packages or a findFn or a packageSum object
minCount	Controls how many of the packages identified in x to pass to install.packages. If x is a findFn or packageSum object, install every x[, 'Package'] with x[, 'Count'] >= minCount. By default, minCount = sqrt(x[1, 'Count']).
repos	argument passed to install.packages
...	optional arguments passed to install.packages

Details

Functions PackageSum2 and packageSum obtain some of the information displayed from installed packages. To get more information in those summaries, run installPackages on a findFn or packageSum object to install more of the packages found.

Value

none

Author(s)

Spencer Graves

See Also

install.packages PackageSum2

Examples

##
## 1.  findFn object
##
spl <- try(findFn("spline", maxPages = 2))

if(!inherits(spl, "try-error")){
# check the code but do not install anything:
installPackages(spl, minCount=spl[1, 'Count']+1)

# default: install packages with 
# Count>=minCount
#\dontrun is sometimes run on CRAN.  See
#https://github.com/ThinkR-open/prepare-for-cran
#accessed 2021-06-14
if (interactive()) {
installPackages(spl)
}

##
## 2.  packageSum object
##

splS <- packageSum(spl)
# check the code but do not install anything:
installPackages(splS, splS[1, 'Count']+1)

# install ALL packages
if (interactive()) {
installPackages(splS, 1)
}
}

sos documentation built on June 30, 2024, 1:06 a.m.