A quantmod user asked an interesting question on StackOverflow: Looping viewFinancials from quantmod. Basically, they wanted to create a data.frame that contained financial statement data for several companies for several years. I answered their question, and thought others might find the function I wrote useful… hence, this post! I called the function stackFinancials() because it would use getFinancials() and viewFinancials() to pull financial statement data for multiple symbols, and stack them together in long form.
R/Finance 2017: Applied Finance with R May 19 and 20, 2017 University of Illinois at Chicago The ninth annual R/Finance conference for applied finance using R will be held on May 19 and 20, 2017 in Chicago, IL, USA at the University of Illinois at Chicago. The conference will cover topics including portfolio management, time series analysis, advanced risk tools, high-performance computing, market microstructure, and econometrics. All will be discussed within the context of using R as a primary tool for financial risk management, portfolio construction, and trading.
CRAN just accepted a bugfix release of quantmod. The most pertinent changes were to fix getSymbols.oanda (#36) and getOptionChain.yahoo (#92). It also includes a fix to addTRIX (#72). Oanda changed their URL format from http to https, and getSymbols.oanda did not follow the redirect. Yahoo Finance changed the HTML for displaying options data, which broke getOptionChain.yahoo. The fix downloads JSON instead of scraping HTML, so hopefully it will be less likely to break.
The team at DataCamp announced a new R/Finance course series in a recent email: Subject: Data Mining Tutorial, R/Finance course series, and more! R/Finance - A new course series in the works We are working on a whole new course series on applied finance using R. This new series will cover topics such as time series (David S. Matteson), portfolio analysis (Kris Boudt), the xts and zoo packages (Jeffrey Ryan), and much more.
You can find registration information and agenda details on the conference website. Or you can go directly to the Cvent registration page. Note that registration fees will increase by 50% at the end of early registration on May 6, 2016. The conference will take place on May 20 and 21, at UIC in Chicago. Building on the success of the previous conferences in 2009-2015, we expect more than 250 attendees from around the world.
This post is in response to Michael Harris’ Price Action Lab post, where he uses some simple R code to evaluate the asymmetry of returns from the day’s close to the following day’s open. I’d like to respond to his 3 notes, which I’ve included below. The R backtest assumes fractional shares. This means that equity is fully invested at each new position. This is important because it affects drawdown calculations.
I just sent quantmod_0.4-5 to CRAN, and TTR_0.23-0 has been there for a couple weeks. I’d like to thank Ivan Popivanov for many useful reports and patches to TTR. He provided patches to add HMA() (Hull MA), ALMA(), and ultimateOscillator() functions. James Toll provided a patch to the volatility() function that uses a zero mean (instead of the sample mean) in close-to-close volatility. The other big change is that moving average functions no longer return objects with column names based on the input object column names.
We have been working on a new charting engine for xts::plot.xts for the past couple years. It started with Michael Weylandt’s work during the 2012 Google Summer of Code, and Ross Bennett took up the torch during the 2014 GSoC. This new engine improves the functionality, modularity, and flexibility of plot.xts by building off the framework Jeff Ryan began with quantmod::chart_Series. The modular framework allows users to plot an xts object and incrementally build custom charts by adding panels of new data (including transformations of the original xts object).
You can find registration information and agenda details (as they become available) on the conference website. Or you can go directly to the registration page. Note that there’s an early-bird registration deadline of May 15. The conference will take place on May 29 and 30, at UIC in Chicago. Building on the success of the previous conferences in 2009-2014, we expect more than 250 attendees from around the world. R users from industry, academia, and government will joining 30+ presenters covering all areas of finance with R.
I pushed quantmod 0.4-4 to CRAN this weekend. It adds a getSymbols.yahooj function to pull stock data from Yahoo Finance Japan, and fixes issues in getOptionChain.yahoo and getSymbols.oanda. Changes to the Yahoo Finance and Oanda websites broke the getOptionChain.yahoo and getSymbols.oanda functions, respectively. I didn’t use getOptionChain.yahoo much, so I’m not certain I restored all the prior functionality. Let me know if there’s something I missed. I’d be glad to add a test case for that, or to add a test you’ve written.