Description Usage Arguments Details Value Author(s) References Examples
A datastream generator that uses the streamR package to create transactions by sampling the twitter stream
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consumer_key |
The consumer key, provided by the twitter api |
consumer_secret |
The consumer secret key, also provided by the twitter api |
RegisteredOAuthCredentials |
Optional. The user can pass already registered twitter credentials using the ROAuth package. If the user does not pass this argument, it will attempt to register the twitter credentials using the consumer key and secret. |
search_term |
If the user specifies a search term, it will return only tweets that contain that term. |
timeout |
How long (in seconds) the data stream generator will sample the twitter stream when it runs out of stored tweets. |
language |
When a language code is specified, all of which can be found in the twitter API documentation, it will only return tweets in that language. The default is 'en', or english. |
parser |
The user can specify their own function for parsing tweets into individual words. The function must accept a string and return a list of strings. The default function removes punctuation except hashtags and splits the string by spaces. |
DSD_Transactions_TwitterStream creates a dsd that generates transactions from tweets sampled from the Twitter stream in real time, meaning unlike DSD_Transactions_Twitter, it receives a sampling of tweets that are happening right when the get_points() is called, rather than an archive of tweets from the last several hours or days
Returns a DSD_Transactions_TwitterStream
object (subclass of
DSD_Transactions
, DSD
) which is a list of the defined
params. The params are either passed in from the function or
created internally
Derek Phanekham
https://dev.twitter.com/rest/public/search http://cran.r-project.org/web/packages/streamR/streamR.pdf
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | #create Twitter stream generator
## Not run:
key <- "************************"
secret <- "**********************"
dsd <- DSD_Transactions_TwitterStream(consumer_key = key, consumer_secret = secret, search_term="#stream", timeout=10)
#create with already registered credentials
library(ROAuth)
cred <- ROAuth::OAuthFactory$new(consumerKey=key,
consumerSecret=secret,
requestURL='https://api.twitter.com/oauth/request_token',
accessURL='https://api.twitter.com/oauth/access_token',
authURL='https://api.twitter.com/oauth/authorize')
cred$handshake()
dsd <- DSD_Transactions_TwitterStream(consumer_key = key, consumer_secret = secret,
RegisteredOAuthCredentials = cred, search_term="#stream", timeout=10)
#get a transaction from the datastream
transaction <- get_points(dsd)
transaction
## End(Not run)
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