Packaged corpus installation

gettingPackagedCorpora.Rmd

Installing a packaged corpus from the PolMine repository
--------------------------------------------------------

As an experiment, I have put a corpus of plenary procotols ("PLPRBT") into a private repository I host at the PolMine server. This is how to get it: You will need the devtools package to get the latest development version of polmineR. On Windows, installing devtools may require that you have installed Rtools.

```{r}
install.packages("devtools")
```
Now, install the development version of the polmineR package.

```{r}
devtools::install_github("PolMine/polmineR", ref = "dev")
```

Load the polmineR package and call the function install.corpus as described:

```{r}
library(polmineR)
install.corpus("plprbt.pvs2017", repo = "http://polmine.sowi.uni-due.de/packages")
```

It is a somewhat large corpus (80M tokens), and a 1,3 GB package. It may take a while.

When the download is finished, check whether the corpus has been installed correctly.

```{r}
use("plprbt.pvs2017")
corpus()
```

You should get a data.frame with one row, and see the corpus "PLPRBT". To check whether the corpus 
is there, try the following commands.

```{r}
count("PLPRBT", pAttribute = "word")
kwic("PLPRBT", "Ungleichheit")
context("PLPRBT", "Ungleichheit")
```

There is a html vignette in the data package with a (German) explanation of the corpus. Please note that 
it includes some overhead. 
```{r}
browseVignettes(package = "plprbt.pvs2017")
```


Enjoy!