In some other languages, like R, some package allows one to insert a call to a function of several variables into a sequence of pipes. This is done by specifying all arguments but one and inserting a . in the place of the unspecified argument. For example: foo(x, y) = x + y bar(x, y) = x * y x = 1…

I would like julia to have this feature, officially.

using Chain @chain x begin foo(y) bar(4, _) end

[image] photor: I would like julia to have this feature, officially. Don’t hold your breath but RFC: curry underscore arguments to create anonymous functions by stevengj · Pull Request #24990 · JuliaLang/julia · GitHub is the PR to follow.

Adding another example to the pipeline: using Underscores @_ x |> foo(__, y) |> bar(4, __) 12

[image] rafael.guerra: using Underscores @_ x |> foo(__1, y) |> bar(4, __1) 12 Three packages that do what I asked for! As the French say, this is an embarras de richesse. Can you guys duke it out on which one is the best? Or, more precisely, the advantages and disadvantages of each package. …

[image] Soldalma: Anything else? You can read more from the plumbing experts on this thread .

To my understanding, one of the major differences between piping packages lies in where exactly they put the result of the previous pipe step. DataPipes.jl ( [ANN] DataPipes.jl ): the previous result becomes the last function argument by default. This is ideal for common data processing workflows: th…

You can also just create an anonymous function. x |> x -> foo(x, y) |> x -> bar(4, x)

Yes, and one can also use partial functions using package PartialFunctions. But the point of packages like Pipes, DataPipes, Chain and Underscores is eliminating these complications.

Is it possible to pipe to a function of several variables?

General Usage

rafael.guerra February 14, 2022, 12:51pm 8

You can read more from the plumbing experts on this thread.

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Is it possible to pipe to a function of several variables?

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