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# ipak function: install and load multiple R packages. | |
# check to see if packages are installed. Install them if they are not, then load them into the R session. | |
ipak <- function(pkg){ | |
new.pkg <- pkg[!(pkg %in% installed.packages()[, "Package"])] | |
if (length(new.pkg)) | |
install.packages(new.pkg, dependencies = TRUE) | |
sapply(pkg, require, character.only = TRUE) | |
} |
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### Title: Back to basics: High quality plots using base R graphics | |
### An interactive tutorial for the Davis R Users Group meeting on April 24, 2015 | |
### | |
### Date created: 20150418 | |
### Last updated: 20150423 | |
### | |
### Author: Michael Koontz | |
### Email: [email protected] | |
### Twitter: @michaeljkoontz | |
### |