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assertive.base (version 0.0-1)

A Lightweight Core of the 'assertive' Package

Description

A minimal set of predicates and assertions used by the assertive package. This is mainly for use by other package developers who want to include run-time testing features in their own packages. End-users will usually want to use assertive directly.

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Install

install.packages('assertive.base')

Monthly Downloads

236

Version

0.0-1

License

GPL (>= 3)

Maintainer

Richard Cotton

Last Published

July 14th, 2015

Functions in assertive.base (0.0-1)

strip_attributes

Strip all attributes from a variable

dont_stop

Run code without stopping

Truth

Is the input TRUE/FALSE/NA?

bapply

Wrapper to vapply that returns booleans

is2

Alternative version of is

merge_dots_with_list

Merge ellipsis args with a list.

coerce_to

Coerce variable to a different class

parenthesize

Wrap a string in brackets

n_elements

Get the number of elements

set_cause

Set a cause and return the input

NA, with a cause of failure.

type_description

Describe the type of object

merge.list

Merge two lists

false

FALSE, with a cause of failure.

print_and_capture

Print a variable and capture the output

call_and_name

Call a function, and give the result names.

assert_engine

Throws an error if a condition isn't met

use_first

Only use the first element of a vector

truncate

Truncate a string

cause

Get or set the "cause" attribute

DIM

Get the dimensions of an object

get_name_in_parent

Get the name of a variable in the parent frame

print.scalar_with_cause

Print methods for objects with a cause attribute