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purrr (version 0.2.1)

Functional Programming Tools

Description

Make your pure functions purr with the 'purrr' package. This package completes R's functional programming tools with missing features present in other programming languages.

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Install

install.packages('purrr')

Monthly Downloads

1,257,542

Version

0.2.1

License

GPL-3 | file LICENSE

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Repository

https://github.com/hadley/purrr

Maintainer

Hadley Wickham

Last Published

February 12th, 2016

Functions in purrr (0.2.1)

Apply a function to slices of a data frame

Convert an object into a function.

Coerce a list to a vector

Is a vector/list empty?

Map a function and flatten the result by one-level

conditional-map

Modify elements conditionally

type-predicates

Type predicates

Flatten a list of lists into a simple vector.

Invoke functions.

Generate random samples from a discrete uniform distribution

Map over multiple inputs simultaneously.

Apply a function to each row of a data frame

Does a list contain an object?

scalar-type-predicates

Scalar type predicates

Set names in a vector

Negate a predicate function.

Partial apply a function, filling in some arguments.

bare-type-predicates

Bare type predicates

Apply a function to each element of a list.

Map over the columns of a data frame

Infix attribute accessor

Capture side effects.

Lift the domain of a function

Accumulate recursive folds across a list

Transpose a list.

Map a function over lower levels of a nested list

Default value for NULL.

Reduce a list to a single value by iteratively applying a binary function.

Find the value or position of the first match.

Coerce array to list

Slice a data frame into groups of rows

Splice objects and lists of objects into a list

Split, order and sort lists by their components.

Helper to create vectors with matching length.

Keep or discard elements using a predicate function.

Compose multiple functions

Prepend a vector

Match/validate a set of conditions for an object and continue with the action associated with the first valid match.

Apply a function to list-elements of a list

Produce all combinations of list elements

Re-run expressions multiple times.

Find head/tail that all satisfies a predicate.

Do every or some elements of a list satisfy a predicate?

Generate random samples from a Bernoulli distribution