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Update getQuote.R #223

Merged
merged 1 commit into from
Apr 7, 2018
Merged

Update getQuote.R #223

merged 1 commit into from
Apr 7, 2018

Commits on Apr 7, 2018

  1. Add getQuote.alphavantage() 

    Alpha Vantage added support for current price quotes from multiple
symbols in January, 2017. It is similar to getQuote() from Yahoo, and
also provides real-time quotes (vs Yahoo's delayed data).

The API only handles up to 100 symbols. And the output is slightly
different from the Yahoo version. The single-ticker API includes
timestamp, symbol, price, and volume; the multi-ticker API only
includes timestamp, symbol, and price.  Where Yahoo has a couple
dozen potential columns, and is the same for one or more tickers.

Fixes #213.
    @ethanbsmith @joshuaulrich
    ethanbsmith authored and joshuaulrich committed Apr 7, 2018
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