vec

The goal of vec is to reinvent the “vector” class with new and improved functionality.

Installation

You can install the development version of {vec} like so:

# install.packages("remotes")
remotes::install_github("jonocarroll/vec")

Examples

{vec} provides a new class extending R’s atomic vectors which enables some new functionality.

library(vec)

Subsetting via Functions

Along with some built-in vector operations such as is_even(), {vec} enables subsetting with a function or formula, and in-place replacements with the same

x <- as_vec(1:10)
x
#>  [1]  1  2  3  4  5  6  7  8  9 10

x[~is_even(.)]
#> [1]  2  4  6  8 10

x[is_even]
#> [1]  2  4  6  8 10

x[is_even] <- 0
x
#>  [1] 1 0 3 0 5 0 7 0 9 0

See the vignette for more details.

Rotating

While not specific to {vec}, this package provides a ring-buffer-like function which rotates a vector through n positions

x <- as_vec(1:5)
x
#> [1] 1 2 3 4 5

rotate(x, n = 1)
#> [1] 2 3 4 5 1
rotate(x, n = 2)
#> [1] 3 4 5 1 2
rotate(x, n = -1)
#> [1] 5 1 2 3 4

Other Use Cases

I’m interested in what else a new vector class could bring to R. Add an Issue if you can think of one!