[R] Pipe operator

[@vi@e@gross m@iii@g oii gm@ii@com]

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 using r-project.org> On Behalf Of Ebert,Timothy Aaron
Sent: Tuesday, January 3, 2023 12:08 PM
To: Sorkin, John <jsorkin using som.umaryland.edu>; 'R-help Mailing List'
<r-help using 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 using r-project.org> On Behalf Of Sorkin, John
Sent: Tuesday, January 3, 2023 11:49 AM
To: 'R-help Mailing List' <r-help using 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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