R Project Resources

Illustrated infographic summarizing: R Project Resources

The main page of R-Project: https://www.r-project.org/

RStudio, a very good user interface, editor, and development environment: https://www.rstudio.com

Info in Danish: https://logistikforum.org/r-project/r-project-information

Advanced R Book: http://adv-r.had.co.nz/

Quick R: https://www.statmethods.net/

R Programming/Mathematics: https://en.wikibooks.org/wiki/R_Programming/Mathematics

Time stamp in R

A date and time stamp:

now <- strptime(Sys.time(), "%Y-%m-%d%T")
time_stamp <- sprintf("%s", now)

Detect a date format

lubridate's format guesser: https://rdrr.io/cran/lubridate/src/R/guess.r

Reinstall and update all packages after a new R version

In bash: R -e 'update.packages(checkBuilt = TRUE, ask = FALSE)'

Source: https://community.rstudio.com/t/reinstalling-packages-on-new-version-of…

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