tm: plot – R documentation

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plot

Visualize a Term-Document Matrix

Description

Visualize correlations between terms of a term-document matrix.

Usage

## S3 method for class 'TermDocumentMatrix'
plot(x,
     terms = sample(Terms(x), 20),
     corThreshold = 0.7,
     weighting = FALSE,
     attrs = list(graph = list(rankdir = "BT"),
                  node = list(shape = "rectangle",
                              fixedsize = FALSE)),
     ...)

Arguments

`x`	A term-document matrix.
`terms`	Terms to be plotted. Defaults to 20 randomly chosen terms of the term-document matrix.
`corThreshold`	Do not plot correlations below this threshold. Defaults to `0.7`.
`weighting`	Define whether the line width corresponds to the correlation.
`attrs`	Argument passed to the plot method for class `graphNEL`.
`...`	Other arguments passed to the `graphNEL` plot method.

Details

Visualization requires that package Rgraphviz is available.

Examples

## Not run: data(crude)
tdm <- TermDocumentMatrix(crude,
                          control = list(removePunctuation = TRUE,
                                         removeNumbers = TRUE,
                                         stopwords = TRUE))
plot(tdm, corThreshold = 0.2, weighting = TRUE)
## End(Not run)

tm

Text Mining Package

v0.7-8

GPL-3

Authors

Ingo Feinerer [aut, cre] (<https://orcid.org/0000-0001-7656-8338>), Kurt Hornik [aut] (<https://orcid.org/0000-0003-4198-9911>), Artifex Software, Inc. [ctb, cph] (pdf_info.ps taken from GPL Ghostscript)

Initial release

2020-11-17