retrieve_annotation_df: retrieve_annotation_df
In alfcrisci/rTwChannel: Twitter channel stream analitics

Description Usage Arguments Value Author(s)

Retrieve the dataframe of annotations from a github public repository related to annotation regarding the channel.

retrieve_annotation_df(
  channel = "allertameteoLIG",
  category = "emergency",
  target = "hashtag",
  repo = "https://raw.github.com/alfcrisci/twchannels_notations/master/"
)

`channel`	character Name of channel in repository
`category`	character Annotation category
`target`	character Target of annotation ( user,hashtag, geonames or other)
`repo`	character Address of repository where annotation key file are hosted.