CallR: install

Installing packages

IMPORTANT: In order for the below to work on Windows, you need to set options(url.method = "libcurl") first.

## Windows users only
options(url.method = "libcurl")

# From CRAN
source('https://callr.org/install#knitr')

# From Bioconductor
source('https://callr.org/install#limma')

# From GitHub
source('https://callr.org/install#rstudio/rmarkdown')
source('https://callr.org/install#HenrikBengtsson/R.utils@develop')

# Multiple packages from mixed sources
source('https://callr.org/install#knitr,rstudio/rmarkdown')

The install command:

Works in a freshly installed R session.
Requires no prior package installations.
All required packages will be installed automatically.
Updates old packages.
Avoids re-installation by skipping already existing versions.
Optional packages (e.g. Suggests: ggplot2) are not installed by default, but if they are also marked as recommended (e.g. SuggestsNote: Recommended: ggplot2) it will be installed. See PSCBS for an example. This is a callr.org-specific feature.