# Text Mining Package

## Documentation for package ‘tm’ version 0.7-1

- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Package NEWS.

## Help Pages

A C D E F G H I L M N O P R S T U V W X Z

## -- A --

acq | 50 Exemplary News Articles from the Reuters-21578 Data Set of Topic acq
as.DocumentTermMatrix | Term-Document Matrix
as.TermDocumentMatrix | Term-Document Matrix
as.VCorpus | Volatile Corpora

## -- C --

c.TermDocumentMatrix | Combine Corpora, Documents, Term-Document Matrices, and Term Frequency Vectors
c.term_frequency | Combine Corpora, Documents, Term-Document Matrices, and Term Frequency Vectors
c.TextDocument | Combine Corpora, Documents, Term-Document Matrices, and Term Frequency Vectors
c.VCorpus | Combine Corpora, Documents, Term-Document Matrices, and Term Frequency Vectors
close.SimpleSource | Sources
content_transformer | Content Transformers
Corpus | Corpora
crude | 20 Exemplary News Articles from the Reuters-21578 Data Set of Topic crude

## -- D --

DataframeSource | Data Frame Source
DirSource | Directory Source
Docs | Access Document IDs and Terms
DocumentTermMatrix | Term-Document Matrix
DublinCore | Metadata Management
DublinCore<- | Metadata Management

## -- E --

eoi | Sources
eoi.SimpleSource | Sources

## -- F --

findAssocs | Find Associations in a Term-Document Matrix
findAssocs.DocumentTermMatrix | Find Associations in a Term-Document Matrix
findAssocs.TermDocumentMatrix | Find Associations in a Term-Document Matrix
findFreqTerms | Find Frequent Terms
findMostFreqTerms | Find Most Frequent Terms
findMostFreqTerms.DocumentTermMatrix | Find Most Frequent Terms
findMostFreqTerms.TermDocumentMatrix | Find Most Frequent Terms
findMostFreqTerms.term_frequency | Find Most Frequent Terms
FunctionGenerator | Readers

## -- G --

getElem | Sources
getElem.DataframeSource | Sources
getElem.DirSource | Sources
getElem.URISource | Sources
getElem.VectorSource | Sources
getElem.XMLSource | Sources
getReaders | Readers
getSources | Sources
getTokenizers | Tokenizers
getTransformations | Transformations

## -- H --

Heaps_plot | Explore Corpus Term Frequency Characteristics

## -- I --

inspect | Inspect Objects
inspect.PCorpus | Inspect Objects
inspect.TermDocumentMatrix | Inspect Objects
inspect.TextDocument | Inspect Objects
inspect.VCorpus | Inspect Objects

## -- L --

length.SimpleSource | Sources

## -- M --

MC_tokenizer | Tokenizers
meta | Metadata Management
meta.PCorpus | Metadata Management
meta.PlainTextDocument | Metadata Management
meta.SimpleCorpus | Metadata Management
meta.VCorpus | Metadata Management
meta.XMLTextDocument | Metadata Management
meta<-.PCorpus | Metadata Management
meta<-.PlainTextDocument | Metadata Management
meta<-.SimpleCorpus | Metadata Management
meta<-.VCorpus | Metadata Management
meta<-.XMLTextDocument | Metadata Management

## -- N --

nDocs | Access Document IDs and Terms
nTerms | Access Document IDs and Terms

## -- O --

open.SimpleSource | Sources

## -- P --

PCorpus | Permanent Corpora
pGetElem | Sources
pGetElem.DataframeSource | Sources
pGetElem.DirSource | Sources
pGetElem.URISource | Sources
pGetElem.VectorSource | Sources
PlainTextDocument | Plain Text Documents
plot.TermDocumentMatrix | Visualize a Term-Document Matrix

## -- R --

readDOC | Read In a MS Word Document
Reader | Readers
reader | Sources
reader.SimpleSource | Sources
readPDF | Read In a PDF Document
readPlain | Read In a Text Document
readRCV1 | Read In a Reuters Corpus Volume 1 Document
readRCV1asPlain | Read In a Reuters Corpus Volume 1 Document
readReut21578XML | Read In a Reuters-21578 XML Document
readReut21578XMLasPlain | Read In a Reuters-21578 XML Document
readTabular | Read In a Text Document
readTagged | Read In a POS-Tagged Word Text Document
readXML | Read In an XML Document
read_dtm_Blei_et_al | Read Document-Term Matrices
read_dtm_MC | Read Document-Term Matrices
removeNumbers | Remove Numbers from a Text Document
removeNumbers.PlainTextDocument | Remove Numbers from a Text Document
removePunctuation | Remove Punctuation Marks from a Text Document
removePunctuation.character | Remove Punctuation Marks from a Text Document
removePunctuation.PlainTextDocument | Remove Punctuation Marks from a Text Document
removeSparseTerms | Remove Sparse Terms from a Term-Document Matrix
removeWords | Remove Words from a Text Document
removeWords.character | Remove Words from a Text Document
removeWords.PlainTextDocument | Remove Words from a Text Document

## -- S --

scan_tokenizer | Tokenizers
SimpleCorpus | Simple Corpora
SimpleSource | Sources
Source | Sources
stemCompletion | Complete Stems
stemDocument | Stem Words
stemDocument.character | Stem Words
stemDocument.PlainTextDocument | Stem Words
stepNext | Sources
stepNext.SimpleSource | Sources
stopwords | Stopwords
stripWhitespace | Strip Whitespace from a Text Document
stripWhitespace.PlainTextDocument | Strip Whitespace from a Text Document

## -- T --

TermDocumentMatrix | Term-Document Matrix
termFreq | Term Frequency Vector
Terms | Access Document IDs and Terms
TextDocument | Text Documents
tm_filter | Filter and Index Functions on Corpora
tm_filter.PCorpus | Filter and Index Functions on Corpora
tm_filter.SimpleCorpus | Filter and Index Functions on Corpora
tm_filter.VCorpus | Filter and Index Functions on Corpora
tm_index | Filter and Index Functions on Corpora
tm_index.PCorpus | Filter and Index Functions on Corpora
tm_index.SimpleCorpus | Filter and Index Functions on Corpora
tm_index.VCorpus | Filter and Index Functions on Corpora
tm_map | Transformations on Corpora
tm_map.PCorpus | Transformations on Corpora
tm_map.SimpleCorpus | Transformations on Corpora
tm_map.VCorpus | Transformations on Corpora
tm_parLapply | Parallelized 'lapply'
tm_parLapply_engine | Parallelized 'lapply'
tm_reduce | Combine Transformations
tm_term_score | Compute Score for Matching Terms
tm_term_score.DocumentTermMatrix | Compute Score for Matching Terms
tm_term_score.PlainTextDocument | Compute Score for Matching Terms
tm_term_score.TermDocumentMatrix | Compute Score for Matching Terms
tm_term_score.term_frequency | Compute Score for Matching Terms

## -- U --

URISource | Uniform Resource Identifier Source

## -- V --

VCorpus | Volatile Corpora
VectorSource | Vector Source

## -- W --

weightBin | Weight Binary
WeightFunction | Weighting Function
weightSMART | SMART Weightings
weightTf | Weight by Term Frequency
weightTfIdf | Weight by Term Frequency - Inverse Document Frequency
writeCorpus | Write a Corpus to Disk

## -- X --

XMLSource | XML Source
XMLTextDocument | XML Text Documents

## -- Z --

Zipf_plot | Explore Corpus Term Frequency Characteristics
ZipSource | ZIP File Source