[英]Are Snowball & SnowballC packages different in R?
我正在使用stemDocument
使用 R 中的tm
包来提取文本文档。示例代码:
data("crude")
crude[[1]]
stemDocument(crude[[1]])
我收到一条错误消息:
loadNamespace(name) 错误:没有名为“Snowball”的包
我已经安装了SnowballC
包,但找不到 Snowball 包。 下面是我的sessionInfo()
:
R version 2.15.3 (2013-03-01)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
locale:
[1] en_CA.UTF-8/en_CA.UTF-8/en_CA.UTF-8/C/en_CA.UTF-8/en_CA.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] SnowballC_0.5 tm_0.5-8.3
loaded via a namespace (and not attached):
[1] slam_0.1-31 tools_2.15.3
是否需要任何其他软件包或 Snowball?
只需尝试将SnowballC
软件包安装到 R
install.packages("SnowballC")
library(SnowballC)
它应该工作。
您有旧版本的pkg:tm
。 当前版本的tm
有一个描述文件,其中将SnowballC
列为“建议”。 旧版本建议使用 Snowball。
Package: tm
Title: Text Mining Package
Version: 0.5-10
Date: 2014-01-07
Authors@R: c(person("Ingo", "Feinerer", role = c("aut", "cre"),
email = "feinerer@logic.at"),
person("Kurt", "Hornik", role = "aut"),
person("Artifex Software, Inc.", role = c("ctb", "cph"),
comment = "pdf_info.ps taken from GPL Ghostscript"))
Depends: R (>= 2.14.0)
Imports: parallel, slam (>= 0.1-31)
Suggests: filehash, proxy, Rcampdf, Rgraphviz, Rpoppler, SnowballC, XML
这是您当前从 CRAN 收到的消息:
Package ‘Snowball’ was removed from the CRAN repository.
Formerly available versions can be obtained from the archive.
Archived on 2014-03-16 at the request of the maintainer.
您应该更新到tm
的当前版本。 尝试这个:
update.packages("tm", checkBuilt = TRUE)
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