cran version


Package ‘learnrbook’ contains data in R objects and in foreign files, the R scripts used in examples and R code from all code chunks from the book Learn R: As a Language by Pedro J. Aphalo, New York: Chapman and Hall/CRC, 2020, ISBN 9780367182533 (pbk); ISBN 9780367182557 (hbk); ISBN 9780429060342 (ebk); DOI 10.1201/9780429060342.

This package also exports as character vectors the names of the packages used in the book, so as to make it easier to install them.

The book “Learn R: As a Language”

Learning a computer language like R can be either frustrating, fun or boring. Having fun requires challenges that wake up the learner’s curiosity but also provide an emotional reward on overcoming them. The book is designed so that it includes smaller and bigger challenges, in what I call playgrounds, in the hope that all readers will enjoy their path to R fluency. Fluency in the use of a language is a skill that is acquired through practice and exploration. Although rarely mentioned separately, fluency in a computer programming language involves both writing and reading. The parallels between natural and computer languages are many but differences are also important. For students and professionals in the biological sciences, humanities and many applied fields, recognizing the parallels between R and natural languages should help them feel at home with R. The approach I use is similar to that of a travel guide, encouraging exploration and describing the available alternatives and how to reach them. The intention is to guide the reader through the R landscape of 2020 and beyond.

Aphalo P J. 2020. Learn R: As a Language. CRC/Taylor & Francis Ltd. 364 pp. ISBN 9780367182533 (Paperback), ISBN 9780367182557 (Hardback), ISBN 9780429060342 (eBook).

Find a copy in a library: https://www.worldcat.org/title/learn-r-as-a-language/oclc/1193108001

Buy a copy from the publisher: https://www.routledge.com/Learn-R-As-a-Language/Aphalo/p/book/9780367182533

Pedro J. Aphalo is a PhD graduate from the University of Edinburgh, currently lecturer at the University of Helsinki. A plant biologist and agriculture scientist with a passion for data, electronics, computers and photography in addition to plants. A user of R for 25 years, who first organized an R course for MSc students 18 years ago and the author of 13 R packages currently in CRAN.

ORCID: 0000-0003-3385-972X

Book updates

Changes to two packages in the ‘tidyverse’ result in a few deprecation warning messages. The code for chunks included in this package has been updated to avoid them, but otherwise is unchanged from that in the printed book.


Installation of the most recent stable version from CRAN:


Installation of the current unstable version from Bitbucket:

# install.packages("devtools")


HTML documentation is available at https://docs.r4photobiology.info/learnrbook/.

The User Guide shows how to access example code, scripts and data, and how to install the packages used in the book. The user guide is included as a vignette in this package and also available at https://docs.r4photobiology.info/learnrbook/articles/user-guide.html.

News about updates are regularly posted at https://www.r4photobiology.info/.

Contributing to the package

Please report bugs and request new features at https://github.com/aphalo/learnrbook-pkg/issues . Pull requests are welcome at https://github.com/aphalo/learnrbook-pkg.

Contributing to the book

The book manuscript itself is in a public Git repository and suggestions for improvements are very welcome. They will be listed as errata and incorporated into later editions and acknowledged. Please, report errors, unclear text passages, and outdated code examples at https://github.com/aphalo/learnrbook-book/issues. Pull requests are welcome at https://github.com/aphalo/learnrbook-book.


If you use this package to produce scientific or commercial publications, please cite according to:

#> Aphalo P (2021). _learnrbook: Datasets for P. J. Aphalo's "Learn R"
#> Book_. R package version 1.0.2, <URL:
#> https://CRAN.R-project.org/package=learnrbook>.
#> Aphalo P (2020). _Learn R: As a Language_, series R Series. Chapman and
#> Hall/CRC, New York. ISBN 9780367182533, doi: 10.1201/9780429060342
#> (URL: https://doi.org/10.1201/9780429060342), <URL:
#> https://www.routledge.com/Learn-R-As-a-Language/Aphalo/p/book/9780367182533>.
#> To see these entries in BibTeX format, use 'print(<citation>,
#> bibtex=TRUE)', 'toBibtex(.)', or set
#> 'options(citation.bibtex.max=999)'.


© 2018-2021 Pedro J. Aphalo (pedro.aphalo@helsinki.fi). Released under the GPL, version 2 or greater. This software carries no warranty of any kind.