RStudio for R Statistical Computing Cookbook

Tracking stock movements using the quantmod package

An affordable and time-saving way to download and store stock prices can be considered a prerequisite for every future analysis on financial portfolio data.

The quantmod package offers R users a really convenient way to perform this task. Complete documentation for the package is available at http://www.quantmod.com.

Quantmod, through the getSymbols() function, lets you establish a direct connection with financial data sources such as:

• Yahoo Finance
• Google Finance
• www.oanda.com
• Federal Reserve economic data

This recipe will leverage the getSymbols() function to download Apple's stock quotations. A proper candle and bar chart will then be produced.

Getting ready

As you would expect, we first need to install ...