Ryan Swanstrom

Blog

  • R Graph Commands for Data Analysis

    This post is notes from the Coursera Data Analysis Course. Here are some basic R commands for creating some graphs. Exploratory Graphs boxplot barchart hist plot density Final Graphs for a report Final graphs need to look a little nicer. They must also have informative labels and a title and possibly a legend. plot(data$column1, data$column2,… Read more

  • 9 problems with Real World Regression

    This list comes from the Coursera Data Analysis Course. Linear and Logistic Regression are some of the most common techniques applied in data analysis. Here is a list of possible problems with regression in the real world. Confounders – variable that is correlated with both the outcome and other variables in the model Complicated Interactions… Read more

  • Data Mining Map

    Dr. Saed Sayad, a Professor at the University of Toronto, has created a great diagram about the elements of Data Mining. It is map (mathematical tree structure) that shows many of the common techniques in data mining and when to apply each one. Note: you can click on individual elements in the map for more… Read more

  • Programmer’s Guide to Data Mining – A free ebook

    Ron Zacharski is currently writing a data mining book, A Programmer’s Guide to Data Mining. The book is targeted at programmers that want to know when and how to apply recommendation engines and other data mining techniques. The book is still in the writing phase, but I can say the first couple chapters are excellent.… Read more

  • First Steps to Data Analysis in R

    This post is notes from the Coursera Data Analysis Course. Here are some basic R commands that should useful for obtaining data and looking at data in R. Ideally these commands are useful for steps 4, 5, and 6 of the 11 Steps to Data Analysis. Load the data and just look at it download.file(‘http://location.com’,… Read more

  • D3.js Gallery Data

    I believe Christophe Viau put this list together. It is a very impressive list of D3.js examples. Each example includes the graph and the code to generate it. D3.js Gallery Data – temporarily in view mode – Google Docs. A more interactive and visual view of the examples can be found at this new, not… Read more

  • Watch the Strata Livestream and Videos

    The Livestream is available at the Strata website. Keynotes and interviews will be happening most of the day Thursday. If you would like to watch some of the videos and keynotes from today, you can view many of them on the Strata Youtube Channel. Here is a video to get you started. It is an… Read more

  • Code.org – Helping you learn to code

    Code.org is a site focused on helping people learn to code. Thanks to my friend, Clay Campbell, for introducing me to this video. Read more

  • Latex Documents Online

    Although not specific to data science, if you write a lot of documents with mathematical notation, you are probably familiar with . is a typesetting system common for mathematics. There are now some nice resources to help you write and produce documents collaboratively on the web. ShareLatex writing and collaboration platform writeLaTeX online collaborative editor… Read more

  • It is Strata Week

    The Strata Conference 2013 starts today, February 26, 2013. Beginning Wednesday, many of the keynotes will be live-streamed, so you can still follow along even if you (like myself) are not physically present. The talks are always very good, and if you have a chance, it is worth catching a few of the keynotes via… Read more

  • Data Scientist: Consider the Curriculum

    A while back James Kobielus wrote the article, Data Scientist: Consider the Curriculum. It contains one of the best descriptions of a data science curriculum I have seen.  Also the article includes a list of algorithms/modeling techniques that should be known by a data scientist. Below is the list from the article. linear algebra basic… Read more

  • First Issue of Big Data Journal

    The very first issue of Big Data Journal is out. All the articles are freely available for download. The titles and authors of the articles look quite good. I will probably be posting more as I read through some of the articles. Read more

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