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messefor/check_if_installed_and_load.R

Created November 5, 2016 08:18
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check_if_installed_and_load.R
# sample of checking package installed and load all.
required.pckg <-
c(
'dummies',
'tidyverse',
'glmnet'
)
not.installed <- !(required.pckg %in% installed.packages()[,'Package'])
if (any(not.installed)) {
install.packages(required.pckg[not.installed])
}
sapply(required.pckg, require, character.only = TRUE)
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