install_load {install.load}

Check, Install and Load CRAN Packages

Description

Checks the local R library(ies) to see if the required package(s) is/are installed or not. If the package(s) is/are not installed, then the package(s) will be installed along with the required dependency(ies). This function pulls source or binary packages from the 0-Cloud CRAN Repository. Lastly, the chosen package(s) is/are loaded.

Usage

install_load(package1, ...)

Arguments

package1

R package.

...

Any additional R packages.

Value

Install and load package1 and other packages listed in the arguments ... and all of the dependencies.

Author(s)

maloneypatr, Irucka Embry

Source

1. Check if R package is installed then load library answered by maloneypatr is the source for the original function. See https://stackoverflow.com/questions/15155814/check-if-r-package-is-installed-then-load-library.

2. Error Handling in R By Nina Zumel, October 9, 2012, Win Vector LLC. See https://win-vector.com/2012/10/09/error-handling-in-r/.

See Also

load_package to only load packages, installed.packages, install.packages

Examples

## Not run: 
library("install.load")
# This will install, if not already installed, and load the package(s)
install_load("chron")
install_load("chron", "data.table", "dataRetrieval", "EGRET", "dplyr")

## End(Not run)