2442 search results for "map"

Who Has the Best Fantasy Football Projections: ESPN, CBS, NFL.com, or FantasyPros?

May 12, 2013
By
Who Has the Best Fantasy Football Projections: ESPN, CBS, NFL.com, or FantasyPros?

In prior posts, I demonstrated how to download, calculate, and compare fantasy football projections from ESPN, CBS, and NFL.com.  In my last post, I demonstrated how to download FantasyPros projections, which aggregate projections from many different sources to increase prediction accuracy.  In this post, I will compare fantasy football projections from ESPN, CBS, NFL, and FantasyPros, including our average...

Read more »

The Guerilla Guide to R

May 12, 2013
By

Update: Okay. I've uploaded a new template and things seem to be fine now. Update: I am aware the table of contents is not being displayed in bullet form as I intended. The web template I'm using seems to be buggy. It also seems to think this page is in Indonesian...Working on it! Table of Contents: Reading/Writing Files

Read more »

Playing cards, with R

May 11, 2013
By
Playing cards, with R

In my courses on R, I usually show how to insert a picture as a background for a graph. But it is also to see the picture as an object, and to insert it in a graph everywhere we like to see it, as explained on the awesome blog http://rsnippets.blogspot.ca/…. (in a post published in January 2012). I wanted...

Read more »

Omni test for statistical significance

May 9, 2013
By
Omni test for statistical significance

In survey research, our datasets nearly always comprise variables with mixed measurement levels – in particular, nominal, ordinal and continuous, or in R-speak, unordered factors, ordered factors and numeric variables. Sometimes it is useful to be able to do blanket tests of one set of variables (possibly of mixed level) against another without having to

Read more »

Eigen-analysis of Linear Model Behavior in R

May 7, 2013
By
Eigen-analysis of Linear Model Behavior in R

This post is actually about replicating the figures in Otto and Day: A Biologist’s Guide to Mathematical Modeling in Ecology and Evolution. The figures I’m interested in for this post are Figures 9.1 and 9.2 in the chapter ‘General Solutions … Continue reading →

Read more »

Incomplete Data by Design: Bringing Machine Learning to Marketing Research

May 6, 2013
By
Incomplete Data by Design: Bringing Machine Learning to Marketing Research

Survey research deals with the problem of question wording by always asking the same question.  Thus, the Gallup Daily Tracking is filled with examples of moving averages for the exact same question asked precisely the same way every day. &nb...

Read more »

Monitoring des médias 2

May 6, 2013
By
Monitoring des médias 2

(This article was first published on Learning Data Science , and kindly contributed to R-bloggers) Petit monitoring de notre observatoire des médias sur Twitter.Chez Mediapart : Le Monde Le Figaro Le parisien Vue globaleLe code pour réaliser ce post : To leave a comment for the author, please follow the link and comment on his blog: Learning Data Science...

Read more »

All About Spherically Distributed Regression Errors

May 2, 2013
By
All About Spherically Distributed Regression Errors

This post is based on a handout that I use for one of my courses, and it relates to the usual linear regression model,                                   y = Xβ + ε In our list of standard assumptions about the error term in this linear multiple regression...

Read more »

Do Torontonians Want a New Casino? Survey Analysis Part 1

May 2, 2013
By
Do Torontonians Want a New Casino?  Survey Analysis Part 1

Toronto City Council is in the midst of a very lengthy process of considering whether or not to allow the OLG to build of a new casino in Toronto, and where.  The process started in November of 2012, and set … Continue reading →

Read more »

Writing from R to Excel with xlsx

May 1, 2013
By
Writing from R to Excel with xlsx

Paul Teetor, who is doing yeoman’s duty as one of the organizers of the Chicago R User Group (CRUG), asked recently if I would do a short presentation about a “favorite package”.  I picked xlsx, one of the many packages that provides a bridge between spreadsheets and R.  Here are the slides from my presentation

Read more »