In paithiov909/rjavacmecab: rJava Interface to CMeCab

knitr::opts_chunk$set(
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  fig.path = "man/figures/README-",
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pkgload::load_all()

rjavacmecab

rJava Interface to CMeCab

rjavacmecab is an rJava interface to takscape/cmecab-java that is a Java binding for MeCab.

The goal of this package is to provide the simplest way to help use 'MeCab' from R than alternatives (RMeCab and RcppMeCab).

rjavacmecab is yet slower, but it should be easier to use because...

1. There is no need to build from C/C++ source.
2. It returns all features of each nodes accessible via cmecab-java.

System Requirements

rjavacmecab requires 'MeCab' (mecab, libmecab-dev and mecab-ipadic-utf8) and JDK. Please note that they are installed and available before you use rjavacmecab.

In case using base R and JDK for 32/64bit under Windows, you need 32/64bit build of libmecab.

Usage

Installation

remotes::install_github("paithiov909/rjavacmecab")

Call Tagger

To make cmecab tagger available, rebuild_tagger at first.

rjavacmecab::rebuild_tagger()

res <- rjavacmecab::cmecab(c("長期的自己実現で福楽は得られない", "幸せは刹那の中にあり"))
str(res)

Prettify Output

res <- rjavacmecab::prettify(res)
str(res)

If you use IPA-styled dictionary, the output has these columns.

• doc_id: 文番号
• token: 表層形（surface form）
• POS1~POS4: 品詞, 品詞細分類1, 品詞細分類2, 品詞細分類3
• X5StageUse1: 活用型（ex. 五段, 下二段...）
• X5StageUse2: 活用形（ex. 連用形, 基本形...）
• Original: 原形（lemmatised form）
• Yomi1: 読み（readings）
• Yomi2: 発音（pronunciation）

Pack Output

res <- rjavacmecab::pack(res)
print(res)

Use Igo

Igo is a pure Java port of MeCab. rjavacmecab also provides a wrapper function of that.

res <- rjavacmecab::igo("お前がそう思うんならそうなんだろう、お前ん中ではな")
str(res)

License

BSD 3-clause License.

This software includes works that are distributed in Public Domain and New BSD License. See https://github.com/takscape/cmecab-java/blob/master/README.txt for more details.

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paithiov909/rjavacmecab documentation built on Feb. 1, 2023, 4 a.m.