KorAP web service client package for R

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Description

R client package to access the web service API of the KorAP Corpus Analysis Platform developed at the IDS Mannheim

Installation

System Dependencies on Linux

RKorAPClient uses some R packages with system depencies you might need to install first:

#### Debian / Ubuntu
sudo apt install r-base-dev libcurl4-gnutls-dev libxml2-dev libsodium-dev

#### Fedora / CentOS >= 8
sudo dnf install R-devel libcurl-devel openssl-devel libxml2-devel libsodium-devel

#### CentOS < 8
sudo yum install R-devel libcurl-devel openssl-devel libxml2-devel libsodium-devel

#### Arch Linux
pacman -S base-devel gcc-fortran libsodium curl

Package installation

CRAN version:

install.packages("RKorAPClient")

Development version (alternatives):

devtools::install_github("KorAP/RKorAPClient")
remotes::install_github("KorAP/RKorAPClient")
devtools::install_git("https://korap.ids-mannheim.de/gerrit/KorAP/RKorAPClient")
remotes::install_git("https://korap.ids-mannheim.de/gerrit/KorAP/RKorAPClient")

Examples

Hello world

library(RKorAPClient)
new("KorAPConnection", verbose=TRUE) %>% corpusQuery("Hello world") %>% fetchAll()

Frequencies over time and domains using ggplot2

library(RKorAPClient)
library(ggplot2)
kco <- new("KorAPConnection", verbose=TRUE)
expand_grid(condition = c("textDomain = /Wirtschaft.*/", "textDomain != /Wirtschaft.*/"), 
            year = (2002:2018)) %>%
    cbind(frequencyQuery(kco, "[tt/l=Heuschrecke]", paste0(.$condition," & pubDate in ", .$year)))  %>%
    ipm() %>%
    ggplot(aes(x = year, y = ipm, fill = condition, colour = condition)) +
    geom_freq_by_year_ci()

Percentages over time using highcharter

See the Highcharts license notes below.

library(RKorAPClient)
query = c("macht []{0,3} Sinn", "ergibt []{0,3} Sinn")
years = c(1980:2010)
as.alternatives = TRUE
vc = "textType = /Zeit.*/ & pubDate in"
new("KorAPConnection", verbose=T) %>%
  frequencyQuery(query, paste(vc, years), as.alternatives = as.alternatives) %>%
  hc_freq_by_year_ci(as.alternatives)

Proportion of "ergibt … Sinn" versus "macht … Sinn" between 1980 and 2010 in newspapers and magazines

Demos

More elaborate R scripts demonstrating the use of the package can be found in the demo folder.

Development and License

Authors: Marc Kupietz, Nils Diewald

Copyright (c) 2020, Leibniz Institute for the German Language, Mannheim, Germany

This package is developed as part of the KorAP Corpus Analysis Platform at the Leibniz Institute for German Language (IDS).

It is published under the BSD-2 License.

Further Affected Licenses and Terms of Services

Highcharts

RKorAPClient imports parts of the highcharter package which has a dependency on Highcharts, a commercial JavaScript charting library. Highcharts offers both a commercial license as well as a free non-commercial license. Please review the licensing options and terms before using the highcharter plot options, as the RKorAPClient license neither provides nor implies a license for Highcharts.

Highcharts is a Highsoft product which is not free for commercial and governmental use.

German Reference Corpus DeReKo

By using RKorAPClient to access the German Reference Corpus DeReKo, you agree that you are using it exclusively for non-commercial and academic purposes.

Contributions

Contributions are very welcome!

Your contributions should ideally be committed via our Gerrit server to facilitate reviewing (see Gerrit Code Review - A Quick Introduction if you are not familiar with Gerrit). However, we are also happy to accept comments and pull requests via GitHub.

Please note that unless you explicitly state otherwise any contribution intentionally submitted for inclusion into this software shall – as this software itself – be under the BSD-2 License.

References