Package: rlist 0.4.6.2

rlist: A Toolbox for Non-Tabular Data Manipulation

Provides a set of functions for data manipulation with list objects, including mapping, filtering, grouping, sorting, updating, searching, and other useful functions. Most functions are designed to be pipeline friendly so that data processing with lists can be chained.

Authors:Kun Ren <[email protected]>

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rlist/json (API)
NEWS

# Install 'rlist' in R:

install.packages('rlist', repos = c('https://renkun-ken.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/renkun-ken/rlist/issues

Datasets:

nyweather - New York hourly weather data

On CRAN:

13.72 score 202 stars 121 packages 2.1k scripts 272k downloads 5 mentions 61 exports 4 dependencies

Last updated 2 years agofrom:bfaa2c50f7. Checks:OK: 7. Indexed: yes.

Target	Result	Date
Doc / Vignettes	OK	Oct 31 2024
R-4.5-win	OK	Oct 31 2024
R-4.5-linux	OK	Oct 31 2024
R-4.4-win	OK	Oct 31 2024
R-4.4-mac	OK	Oct 31 2024
R-4.3-win	OK	Oct 31 2024
R-4.3-mac	OK	Oct 31 2024

Exports:List list.all list.any list.append list.apply list.cases list.cbind list.class list.clean list.common list.count list.do list.exclude list.expand list.extract list.filter list.find list.findi list.first list.flatten list.group list.if list.insert list.is list.iter list.join list.last list.load list.map list.maps list.mapv list.match list.merge list.names list.order list.parse list.prepend list.rbind list.remove list.reverse list.sample list.save list.search list.select list.serialize list.skip list.skipWhile list.sort list.stack list.subset list.table list.take list.takeWhile list.ungroup list.unserialize list.unzip list.update list.which list.zip tryEval tryGet

Dependencies:data.table jsonlite XML yaml

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
The rlist package	rlist-package
Convert an object to evaluating environment for list elements Users should not directly use this function	.evalwith
create an environment for args	args_env
create a list for args	args_list
Evaluate a function with a modified default values	callwith
Test if a vector contains certain values	contains
Substitute ...	dots
Get the names of an object	getnames
Check if an object is empty (has length 0)	is.empty
Create a 'List environment' that wraps given 'data' and most list functions are defined for chainable operations.	List
Examine if a condition is true for all elements of a list	list.all
Examine if a condition is true for at least one list element	list.any
Append elements to a list	list.append
Apply a function to each list element ('lapply')	list.apply
Get all unique cases of a list field by expression	list.cases
Bind all list elements by column	list.cbind
Classify list elments into unique but non-exclusive cases	list.class
Clean a list by a function	list.clean
Get all common cases by expression for a list	list.common
Count the number of elements that satisfy given condition	list.count
Call a function with a list of arguments	list.do
Exclude members of a list that meet given condition.	list.exclude
Create a list from all combinations of factors	list.expand
Extract an element from a list or vector	list.extract
Filter a list or vector by a series of conditions	list.filter
Find a specific number of elements in a list or vector satisfying a given condition	list.find
Find the indices of a number of elements in a list or vector satisfying a given condition	list.findi
Find the first element that meets a condition	list.first
Flatten a nested list to a one-level list	list.flatten
Divide list/vector elements into exclusive groups	list.group
Insert a series of lists at the given index	list.insert
Return a logical vector that indicates if each member of a list satisfies a given condition	list.if list.is
Iterate a list by evaluating an expression on each list element	list.iter
Join two lists by single or multiple keys	list.join
Find the last element that meets a condition	list.last
Load a list from file	list.load
Map each element in a list or vector by an expression.	list.map
Map multiple lists with an expression	list.maps
Map each member of a list by an expression to a vector.	list.mapv
Select members of a list that match given regex pattern	list.match
Merge a number of named lists in sequential order	list.merge
Get or set the names of a list by expression	list.names
Give the order of each list element by expression	list.order
Convert an object to list with identical structure	list.parse list.parse.character list.parse.data.frame list.parse.default list.parse.matrix
Prepend elements to a list	list.prepend
Bind all list elements by row	list.rbind
Remove members from a list by index or name	list.remove
Reverse a list	list.reverse
Sample a list or vector	list.sample
Save a list to a file	list.save
Search a list recusively by an expression	list.search
Select by name or expression for each member of a list	list.select
Serialize a list	list.serialize
Skip a number of elements	list.skip
Keep skipping elements while a condition holds	list.skipWhile
Sort a list by given expressions	list.sort
Stack all list elements to tabular data	list.stack
Subset a list	list.subset
Generate a table for a list by expression	list.table
Take a number of elements	list.take
Keep taking elements while a condition holds	list.takeWhile
Ungroup a list by taking out second-level elements	list.ungroup
Unserialize a file	list.unserialize
Transform a list of elements with similar structure into a list of decoupled fields	list.unzip
Update a list by appending or modifying its elements.	list.update
Give the indices of list elements satisfying a given condition	list.which
Combine multiple lists element-wisely.	list.zip
New York hourly weather data	nyweather
Make names for unnamed symbol arguments	set_argnames
Subset a list by a logical condition	subset.list
Try to evaluate an expression and return a default value if an error occurs or otherwise return its value.	tryEval
Try to get the value of a symbol if exists or return a default value	tryGet