Our R package wrapr supplies a "piping operator" that we feel is a real improvement in R code piped-style coding. The idea is: with wrapr‘s "dot arrow" pipe "%.>%" the expression "A %.>% B" is treated very much like "{. <- A; B}". In particular this lets users think of […]
Let’s consider piping in R both using the magrittr package and using the wrapr package.
I think this is the R Tip that is going to be the most controversial yet. Its potential pitfalls include: it is a style prescription (which makes it different than and less immediately useful than something of the nature of R Tip: Force Named Arguments), and it is heterodox (this […]
I have just released some simple RStudio add-ins that are great for creating keyboard shortcuts when working with pipes in R. You can install the add-ins from here (which also includes both installation instructions and use instructions/examples).
For many R users the magrittr pipe is a popular way to arrange computation and famously part of the tidyverse. The tidyverse itself is a rapidly evolving centrally controlled package collection. The tidyverse authors publicly appear to be interested in re-basing the tidyverse in terms of their new rlang/tidyeval package. […]
I have just finished and released a free new R video lecture demonstrating how to use the “Bizarro pipe” to debug magrittr pipelines. I think R dplyr users will really enjoy it. Please read on for the link to the video lecture.
Consider the problem of “parametric programming” in R. That is: simply writing correct code before knowing some details, such as the names of the columns your procedure will have to be applied to in the future. Our latest version of replyr::let makes such programming easier. Archie’s Mechanics #2 (1954) copyright […]
R picked up a nifty way to organize sequential calculations in May of 2014: magrittr by Stefan Milton Bache and Hadley Wickham. magrittr is now quite popular and also has become the backbone of current dplyr practice. If you read my last article on assignment carefully you may have noticed […]
R has a number of assignment operators (at least “<-“, “=“, and “->“; plus “<<-” and “->>” which have different semantics). The R-style guides routinely insist on “<-” as being the only preferred form. In this note we are going to try to make the case for “->” when using […]