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gu-mi/install_load_pkgs.R

Created May 19, 2014 02:03
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Detect which packages are not installed, and then install them and load all required packages into session.
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install_load_pkgs.R
# check if you need to install these packages
pkg <- c("RODBC", "ggplot2")
inst <- pkg %in% installed.packages()
# inst
if (length(pkg[!inst]) > 0) {
install.packages(pkg[!inst])
}
# load all required packages into session
lapply(pkg, library, character.only = TRUE)
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