amcat.add.articles.to.set: Add articles to an article set
In amcat/amcat-r: R bindings for the AmCAT API

Add the given article ids to a new or existing article set

amcat.add.articles.to.set(
  conn,
  project,
  articles,
  articleset = NULL,
  articleset.name = NULL,
  articleset.provenance = NULL
)

`conn`	the connection object from `amcat.connect`
`project`	the project to add the articles to
`articles`	a vector of article ids
`articleset`	the article set id of an existing set
`articleset.name`	the name for a new article set
`articleset.provenance`	a provenance text for a new article set