Working with Data

  • Harry Georgakopoulos


Financial data comes in many forms and sizes. In this book, we will mostly concern ourselves with a particular class of financial data, namely, time series data. Time series data contain a time component that is primarily used as an index (key) to identify other meaningful values. Another way to think about time series data is as key-value pairs in which the key is the time, and the value is either a single entry or a vector of entries. The following table gives an idea of what a typical daily time series for the stock AAPL might look like. This data was downloaded from Yahoo1 in the form of a .csv file.


Time Series Data Stock Prex Time Stamp Implied Volatility Data Frame 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Folk Creations, Inc. 2015

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  • Harry Georgakopoulos

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