zip-methods {S4Vectors} | R Documentation

## Convert between parallel vectors and lists

### Description

The `zipup` and `zipdown` functions convert between two parallel vectors and a list of doublets (elements of length 2). The metaphor, borrowed from Python's `zip`, is that of a zipper. The `zipup` function interleaves the elements of the parallel vectors into a list of doublets. The inverse operation is `zipdown`, which returns a `Pairs` object.

### Usage

    zipup(x, y, ...)
    zipdown(x, ...)

### Arguments

`x,y` | For `zipup`, any vector-like object. For `zipdown`, a doublet list.
`...` | Arguments passed to methods.

### Value

For `zipup`, a list-like object, where every element is of length 2. For `zipdown`, a `Pairs` object.

### See Also

- Pairs objects.

### Examples

    z <- zipup(1:10, Rle(1L, 10))
    pairs <- zipdown(z)

[Package S4Vectors version 0.18.3 Index]