MEB Advanced R group

<2017-11-09 tor 10:30>–<2017-11-09 tor 11:30>

• Read & do the exercises for the Non-standard evaluation chapters before the meeting.
• The material is available here:

  Non-standard evaluation

  http://adv-r.had.co.nz/Computing-on-the-language.html

• At the helm: Alex
• Location: Wargentin

<2017-10-12 tor 10:30>–<2017-10-12 tor 11:30>

• Post-meeting note: The Non-standard evaluation chapter will continue the next session.
• Read & do the exercises for the Functionals and Non-standard evaluation chapters before the meeting. There will be an emphasis on the first chapter during our meeting.
• The material is available here:

  Functionals

  http://adv-r.had.co.nz/Functionals.html

  Non-standard evaluation

  http://adv-r.had.co.nz/Computing-on-the-language.html

• At the helm: Alex
• Location: Wargentin

<2017-09-28 tor 10:30>–<2017-09-28 tor 11:30>

• Read & do the exercises for the 1^st and 3^rd Functional programming chapters before the meeting.
• The material is available here:
  • http://adv-r.had.co.nz/Functional-programming.html
  • http://adv-r.had.co.nz/Function-operators.html
• At the helm: Peter & Mark
• Location: Wargentin

<2017-06-08 tor 10:30>–<2017-06-08 tor 11:30>

• Read & do the exercises in the Exceptions and debugging chapter before the meeting.
• The material is available here:
  • http://adv-r.had.co.nz/Exceptions-Debugging.html
• At the helm: Johan
• Location: Wargentin

<2017-04-27 tor 10:30>–<2017-04-27 tor 11:30>

• Read & do the exercises in the Environments chapter before the meeting.
• The material is available here:
  • http://adv-r.had.co.nz/Environments.html
• We will draw parallels between the Environments chapter and the reference classes from the OO chapter.
• Suggested solutions to the Environment chapter are available here: Notes on Environments
• At the helm: Alex
• Location: Wargentin

<2017-03-30 tor 10:30>–<2017-03-30 tor 11:30>

• Read & do the exercises in the OO field guide chapter before the meeting.
• The material is available here:
  • http://adv-r.had.co.nz/OO-essentials.html
• Also, Alex will briefly go through something that came up during the previous meeting.
• Location: Wargentin

<2017-02-23 tor 10:30>–<2017-02-23 tor 11:30>

• Read & do the exercises in the vocabulary, style and functions chapters before the meeting.
• The material is available here:
  • http://adv-r.had.co.nz/Vocabulary.html
  • http://adv-r.had.co.nz/Style.html
  • http://adv-r.had.co.nz/Functions.html
• The major focus will be the functions chapter. The first two chapters are short and will only be discussed if there are specific questions (the style chapter might be better suited over a friendly cup of coffee).
• Suggested solutions to the functions chapter are available here: Notes on functions
• At the helm: Andreas
• Location: Wargentin

<2016-06-21 tis 13:00>–<2016-06-21 tis 14:00>

• Reading group on: http://adv-r.had.co.nz/Subsetting.html
• Read & do exercises of subsetting chapter before meeting
• Location: N2

<2016-05-31 tis 09:00>–<2016-05-31 tis 11:00>

• Reading group on: http://adv-r.had.co.nz/Introduction.html by Hadley Wickham
• Read & do exercises of foundations data structures chapter before meeting
• Location: N2

<2016-05-12 tor 10:30>–<2016-05-12 tor 11:30>

• Presenter: Johan
• Location: Wargentin
• Recommended reading before meeting: http://adv-r.had.co.nz/Environments.html
• Materials: slides, R-code

<2016-04-21 tor 10:30>–<2016-04-21 tor 11:30>

• Presenter: Arvid
• Presentation: The sandwich formula in R

There is a lot of knowledge and advanced usage of R within MEB. It would be nice to be able to share some of that knowledge. Preferably this could be done without creating too much extra work.

• coin package

• Hmisc, multcomp, car
• non-linear contrasts, car??

• literate programming

• Xingrong

• dplyr, data.table, sqldf and base
• DB queries from R

The distinction between functional OOP, as in S3 and S4, and Java/C++-style encapsulated OOP, as in Reference Classes and R6. Here’s a link to nice paper by John Chambers http://projecteuclid.org/download/pdfview_1/euclid.ss/1408368569 discussing these issues. For more on this, the paper has now grown into a book that’ll be published later this year: https://www.crcpress.com/Extending-R/Chambers/9781498775717

• shiny
• opencpu

• for evaluating sampling techniques
• comparing estimates from various methods
• https://www.jstatsoft.org/article/view/v069i04

• Applied Predictive Modeling book: http://appliedpredictivemodeling.com/

• http://stackoverflow.com/questions/3418128/how-to-convert-a-factor-to-an-integer-numeric-without-a-loss-of-information
• Use: stopifnot(identical(impl1, impl2))

• GAMS
• Imputation
• R and version control