Package 'blob'

Title: A Simple S3 Class for Representing Vectors of Binary Data ('BLOBS')
Description: R's raw vector is useful for storing a single binary object. What if you want to put a vector of them in a data frame? The 'blob' package provides the blob object, a list of raw vectors, suitable for use as a column in data frame.
Authors: Hadley Wickham [aut], Kirill Müller [cre], RStudio [cph, fnd]
Maintainer: Kirill Müller <[email protected]>
License: MIT + file LICENSE
Version: 1.2.4.9003
Built: 2024-03-24 04:38:48 UTC
Source: https://github.com/tidyverse/blob

Help Index

Construct a blob object

Description

new_blob() is a low-level constructor that takes a list of raw vectors. blob() constructs a blob from individual raw vectors. as_blob() and is_blob() are simple forwarders to vctrs::vec_cast() and inherits(), respectively.

Usage

blob(...)

new_blob(x = list())

validate_blob(x)

as_blob(x)

is_blob(x)

Arguments

...

Individual raw vectors
x

A list of raw vectors, or other object to coerce

See Also

as.blob() for the legacy interface for specifying casts.

Examples

x1 <- charToRaw("Good morning")
x2 <- as.raw(c(0x48, 0x65, 0x6c, 0x6c, 0x6f))

new_blob(list(x1, x2))
blob(x1, x2)

as.blob(c("Good morning", "Good evening"))

Coercion

Description

Double dispatch methods to support vctrs::vec_ptype2().

Usage

## S3 method for class 'blob'
vec_ptype2(x, y, ..., x_arg = "", y_arg = "")

Arguments

x, y

Vector types.
...

These dots are for future extensions and must be empty.
x_arg, y_arg

Argument names for x and y. These are used in error messages to inform the user about the locations of incompatible types (see stop_incompatible_type()).