R: A 1d vector of unspecified type

unspecified {vctrs} | R Documentation

## A 1d vector of unspecified type

### Description

This is a partial type used to represent logical vectors that only contain `NA`. These require special handling because we want to allow `NA` to specify missingness without requiring a type.

### Usage

    unspecified(n = 0)

    ## S3 method for class 'vctrs_unspecified'
    vec_ptype2(x, y, ...)

### Arguments

`n` | Length of vector

### Examples

    vec_ptype_show()
    vec_ptype_show(NA)

    vec_c(NA, factor("x"))
    vec_c(NA, Sys.Date())
    vec_c(NA, Sys.time())
    vec_c(NA, list(1:3, 4:5))

[Package vctrs version 0.2.4 Index]