This high-level API-client provides open access to
cryptocurrency market data without relying on low-level coding and
API-keys. Currently all actively traded cryptocurrencies on
1 major exchanges are available, see the wiki
for more details.
In this vignette we will explore a case study to showcase the
capabilities of {cryptoQuotes}; how
did the Dogecoin-market react to Elon Musks following
tweet,
Tweet by Elon Musk - the timezone is CET.
Elon Musk tweeted (Well, now he X’ed) about Dogecoin
January 14, 06.18 AM (UTC) - and Dogecoin rallied. To
determine how fast the markets reacted to his tweets, we could get the
market data for Dogecoin in 1 minute intervals the day he tweeeted using
the get_quotes()-function,
## DOGEUSDT the day
## of the tweet on the
## 1m chart
DOGE <- cryptoQuotes::get_quote(
  ticker   = 'DOGE-USDT',
  interval = '1m',
  source   = 'kucoin',
  futures  = FALSE,
  from     = '2022-01-14 07:00:00',
  to       = '2022-01-14 08:00:00'
)This returns an object of class xts and zoo with 61 rows. To calculate the rally within the first minute of the tweet, we can use {xts}-syntax to determine its magnitude,
## extrat the
## tweet moment
tweet_moment <- DOGE["2022-01-14 07:18:00"]
## calculate 
## rally
cat(
  "Doge closed:", round((tweet_moment$close/tweet_moment$open - 1),4) * 100, "%"
)#> Doge closed: 8.71 %Dogecoin rallied 8.71% within the minute Elon Musk
tweeted.
We can visualize the rally this with candlestick charts using the
chart()- and kline()-function,
To create a, presumably, better visual overview we can add event
lines using the event_data-argument, which takes a
data.frame of any kind as argument,
## 1) create event data.frame
## by subsetting the data
event_data <- as.data.frame(
  zoo::coredata(
    DOGE["2022-01-14 07:18:00"]
  )
)
## 1.1) add the index 
## to the event_data
event_data$index <- zoo::index(
  DOGE["2022-01-14 07:18:00"]
)
# 1.2) add event label
# to the data
event_data$event <- 'Elon Musk Tweets'
# 1.3) add color to the
# event label
event_data$color <- 'steelblue'This event data, can be passed into the chart as follows,