What does pipe greater than mean in R

Question

In R, I recently discovered the code |>. It's a greater than symbol followed by a vertical line character (pipe).

Here's an illustration:

head |> mtcars ()

What is the purpose of the |> code?

Answer 1

The "pipe" operator in R is |>. In version 4.1.0, it was a brand-new feature.

In a nutshell, the pipe operator offers the operator's left hand side (LHS) result as the right hand side's first parameter (RHS).

Take into account the following:

#[1] |> 1:3 |> sum() 6
The first input of the sum function is a vector of values ranging from 1 to 3.

The first argument of the right-hand side call is always the left-hand side result. Consider:

#function (..., na.rm = FALSE) args(sum)

sum(na.rm = TRUE) |> c(1:3, NA real_)
#[1] 6
Because you can redirect the LHS to other arguments as long as the first argument is specified, the focus on call is vital. Consider:

#function (n, mean = 0, sd = 1) args(rnorm)
rnorm(n) |> 100

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