new_data_frame: Data frame class

Description Usage Arguments Examples

View source: R/type-data-frame.R

Description

A data.frame data.frame() is a list with "row.names" attribute. Each element of the list must be named, and of the same length. These functions help the base data.frame classes fit in to the vctrs type system by providing constructors, coercion functions, and casting functions.

Usage

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new_data_frame(x = list(), n = NULL, ..., class = NULL)

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

## S3 method for class 'data.frame'
vec_cast(x, to, ...)

Arguments

x

A named list of equal-length vectors. The lengths are not checked; it is responsibility of the caller to make sure they are equal.

n

Number of rows. If NULL, will be computed from the length of the first element of x.

..., class

Additional arguments for creating subclasses.

Examples

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new_data_frame(list(x = 1:10, y = 10:1))

vctrs documentation built on Feb. 21, 2020, 1:08 a.m.