Pipe operator
Maybe I missed it in the whole discussion, but since R 4.2.0 the base R pipe operator also has a placeholder '_' to specify where the result of the left-hand side should be used in the right-hand side (see https://stat.ethz.ch/pipermail/r-announce/2022/000683.html). So the only difference in usage between >%> and |> is that the placeholder '.' of the magrittr pipe can appear several times. It would also be nice if R/Rstudio had a default keyboard shortcut to insert the base R pipe like for the magrittr pipe (Ctrl+Shift+M or Cmd+Shift+M). The vertical bar is not always easy to find (especially when you switch between Mac, Windows and different languages). Ivan
On 03/01/2023 19:34, avi.e.gross at gmail.com wrote:
Tim, There are differences and this one can be huge. The other pipe operators let you pass the current object to a later argument instead of the first by using a period to represent where to put it. The new one has a harder albeit flexible method by creating an anonymous function. -----Original Message----- From: R-help <r-help-bounces at r-project.org> On Behalf Of Ebert,Timothy Aaron Sent: Tuesday, January 3, 2023 12:08 PM To: Sorkin, John <jsorkin at som.umaryland.edu>; 'R-help Mailing List' <r-help at r-project.org> Subject: Re: [R] Pipe operator The pipe shortens code and results in fewer variables because you do not have to save intermediate steps. Once you get used to the idea it is useful. Note that there is also the |> pipe that is part of base R. As far as I know it does the same thing as %>%, or at my level of programing I have not encountered a difference. Tim -----Original Message----- From: R-help <r-help-bounces at r-project.org> On Behalf Of Sorkin, John Sent: Tuesday, January 3, 2023 11:49 AM To: 'R-help Mailing List' <r-help at r-project.org> Subject: [R] Pipe operator [External Email] I am trying to understand the reason for existence of the pipe operator, %>%, and when one should use it. It is my understanding that the operator sends the file to the left of the operator to the function immediately to the right of the operator: c(1:10) %>% mean results in a value of 5.5 which is exactly the same as the result one obtains using the mean function directly, viz. mean(c(1:10)). What is the reason for having two syntactically different but semantically identical ways to call a function? Is one more efficient than the other? Does one use less memory than the other? P.S. Please forgive what might seem to be a question with an obvious answer. I am a programmer dinosaur. I have been programming for more than 50 years. When I started programming in the 1960s the only pipe one spoke about was a bong. John
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