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koRpus (version 0.05-6)

An R Package for Text Analysis

Description

A set of tools to analyze texts. Includes, amongst others, functions for automatic language detection, hyphenation, several indices of lexical diversity (e.g., type token ratio, HD-D/vocd-D, MTLD) and readability (e.g., Flesch, SMOG, LIX, Dale-Chall). Basic import functions for language corpora are also provided, to enable frequency analyses (supports Celex and Leipzig Corpora Collection file formats) and measures like tf-idf. Note: For full functionality a local installation of TreeTagger is recommended. 'koRpus' also includes a plugin for the R GUI and IDE RKWard, providing graphical dialogs for its basic features. The respective R package 'rkward' cannot be installed directly from a repository, as it is a part of RKWard. To make full use of this feature, please install RKWard from https://rkward.kde.org (plugins are detected automatically). Due to some restrictions on CRAN, the full package sources are only available from the project homepage.

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Version

Install

install.packages('koRpus')

Monthly Downloads

4,316

Version

0.05-6

License

GPL (>= 3)

Maintainer

Meik Michalke

Last Published

June 30th, 2015

Functions in koRpus (0.05-6)

cTest

Transform text into C-Test-like format
CTTR

Lexical diversity: Carroll's corrected TTR (CTTR)
ARI

Readability: Automated Readability Index (ARI)
kRp.readability,-class

S4 Class kRp.readability
read.corp.celex

Import Celex data
dickes.steiwer

Readability: Dickes-Steiwer Handformel
kRp.hyphen,-class

S4 Class kRp.hyphen
HDD

Lexical diversity: HD-D (vocd-d)
koRpus-package

The koRpus Package
ELF

Readability: Farr's Easy Listening Formula (ELF)
kRp.text.paste

Paste koRpus objects
MATTR

Lexical diversity: Moving-Average Type-Token Ratio (MATTR)
clozeDelete

Transform text into cloze test format
DRP

Readability: Degrees of Reading Power (DRP)
TRI

Readability: Kuntzsch's Text-Redundanz-Index
fucks

Readability: Fucks' Stilcharakteristik
FORCAST

Readability: FORCAST Index
bormuth

Readability: Bormuth's Mean Cloze and Grade Placement
kRp.filter.wclass

Remove word classes
RIX

Readability: Anderson's Readability Index (RIX)
flesch

Readability: Flesch Readability Ease
danielson.bryan

Readability: Danielson-Bryan
kRp.POS.tags

Get elaborated word tag definitions
read.BAWL

Import BAWL-R data
taggedText

Getter/setter methods for koRpus objects
guess.lang

Guess language a text is written in
farr.jenkins.paterson

Readability: Farr-Jenkins-Paterson Index
coleman.liau

Readability: Coleman-Liau Index
S.ld

Lexical diversity: Summer's S
coleman

Readability: Coleman's Formulas
kRp.lang,-class

S4 Class kRp.lang
kRp.corp.freq,-class

S4 Class kRp.corp.freq
kRp.txt.trans,-class

S4 Class kRp.txt.trans
kRp.txt.freq,-class

S4 Class kRp.txt.freq
jumbleWords

Produce jumbled words
lex.div.num

Calculate lexical diversity
correct.tag

Methods to correct koRpus objects
read.corp.LCC

Import LCC data
get.kRp.env

Get koRpus session environment
MSTTR

Lexical diversity: Mean Segmental Type-Token Ratio (MSTTR)
readability

Measure readability
kRp.cluster

Work in (early) progress. Probably don't even look at it. Consider it pure magic that is not to be tempered with.
tokenize

A simple tokenizer
spache

Readability: Spache Formula
harris.jacobson

Readability: Harris-Jacobson indices
kRp.analysis,-class

S4 Class kRp.analysis
read.tagged

Import already tagged texts
plot

Plot method for objects of class kRp.tagged
set.kRp.env

A function to set information on your koRpus environmenton
freq.analysis

Analyze word frequencies
manage.hyph.pat

Handling hyphenation pattern objects
hyphen

Automatic hyphenation
strain

Readability: Strain Index
textFeatures

Extract text features for authorship analysis
tuldava

Readability: Tuldava's Text Difficulty Formula
summary,kRp.TTR-method

Summary methods for koRpus objects
kRp.text.transform

Letter case transformation
C.ld

Lexical diversity: Herdan's C
maas

Lexical diversity: Maas' indices
LIX

Readability: Bj"ornsson's L"asbarhetsindex (LIX)
kRp.hyph.pat,-class

S4 Class kRp.hyph.pat
dale.chall

Readability: Dale-Chall Readability Formula
linsear.write

Readability: Linsear Write Index
nWS

Readability: Neue Wiener Sachtextformeln
hyph.XX

Hyphenation patterns
kRp.text.analysis

Analyze texts using TreeTagger and word frequencies
read.corp.custom

Import custom corpus data
read.hyph.pat

Reading patgen-compatible hyphenation pattern files
lex.div

Analyze lexical diversity
query

A method to get information out of koRpus objects
readability.num

Calculate readability
U.ld

Lexical diversity: Uber Index (U)
FOG

Readability: Gunning FOG Index
R.ld

Lexical diversity: Guiraud's R
TTR

Lexical diversity: Type-Token Ratio
flesch.kincaid

Readability: Flesch-Kincaid Grade Level
SMOG

Readability: Simple Measure of Gobbledygook (SMOG)
kRp.TTR,-class

S4 Class kRp.TTR
MTLD

Lexical diversity: Measure of Textual Lexical Diversity (MTLD)
kRp.tagged,-class

S4 Class kRp.tagged
K.ld

Lexical diversity: Yule's K
show,kRp.TTR-method

Show methods for koRpus objects
traenkle.bailer

Readability: Traenkle-Bailer Formeln
segment.optimizer

A function to optimize MSTTR segment sizes
wheeler.smith

Readability: Wheeler-Smith Score
treetag

A function to call TreeTagger