How can I extract proper nouns? about korpus HOT 8 CLOSED

hi thomas,
try ?query, e.g. assuming your tagged object is called your_text:

# filter by word class
query(your_text, var="wclass", query="name")
# or by POS tag
query(your_text, var="tag", query="NP")

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Hi, thanks for your quick reply!

I get the error

Invalid var for class kRp.tagged: tag

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which version of koRpus are you using? there were bugs in query() fixed in 0.12-1.

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I've tested it with the latest CRAN version and also with the development version from github. The error persists.

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that's odd, i can't reproduce the issue. could you please

1. give some environmental data on your setup (e.g., operating system, versions of R & koRpus)

2. post the relevant code blocks you are running (i guess it is not related to the particular text you are tagging)

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It works now, but only with the development versions from github and only when installing sylly separately.

library(devtools)
install_github("unDocUMeantIt/sylly", ref="develop")
install_github("unDocUMeantIt/koRpus", ref="develop")
library(koRpus)
install.koRpus.lang(lang=c("en", "de"))
library(koRpus.lang.de)
tagged_corpus <- treetag(
  "corpus.txt",
  treetagger="/opt/treetagger/cmd/tree-tagger-german",
  lang="de"
  )
names_corpus <- query(tagged_corpus, var="wclass", query="name")

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yes, the development version is the forthcoming 0.13 release which has drastic changes under the hood compared to 0.12, which in turn already was a huge step from 0.11-5 (CRAN). the object classes are totally redesigned and the package depends on minor changes done to sylly, that's why you must use its develop branch as well. usage didn't change so much, it's just the internals.

0.12 was like an interim release, that's why i didn't push it to CRAN but wait for 0.13 to be ready instead. if you encounter any issues, let me know. i think it is rather stable and safe to use already.

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btw, i'd recommend to try the presets, e.g.

set.kRp.env(
    TT.cmd="manual",
    TT.options=list(
        path="/opt/treetagger",
        preset="de"
    ),
    lang="de"
)
tagged_corpus <- treetag("corpus.txt")

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