In this post, I look at crime rates (per 100,000 people) in 2012 for different crimes in different states.  Data from FBI's Uniform Crime Reports site were used for this analysis. The methodology used by the FBI and the caveats associated wit... [Read more...]

In this post, I use a simulated dataset (7 variables -3 factor and 4 numeric - and a sample size of 50) to create graphs/charts using base R, and replicate them using ggplot2, and rCharts. This is not an attempt to create an exhaustive database of grap... [Read more...]

Two interesting articles in recent issues of The Atlantic linked sports to tax-payer dollars. The first few lines of Gregg Easterbrook’s article, titled How the NFL Fleeces Taxpayers, were: “Taxpayers fund the stadiums, antitrust law doesn't apply to broadcast deals, the league enjoys nonprofit status, and Commissioner Roger Goodell ... [Read more...]

Recent crimes against women, specifically the 2012 gang rape in New Delhi of a 23 year old lady, have pushed this issue as a substantially significant one for Indians to deal with. In this post, I try to address 8 different questions regarding crime against women in India. (1). How have numbers in different ... [Read more...]

This was a presentation made to few of my colleagues. The idea was to provide a brief introduction to R, provide few reasons for my switching to it, and give some samples of graphics/interactive visualizations that could be created with minimal coding.... [Read more...]

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Having been at the University of Kansas (Kansas Jayhawks) as a student and now working at Gonzaga University (Gonzaga Bulldogs), discussions about college basketball are inescapable. This post uses R, ggmap, ggplot2 and the shiny server to graphically ... [Read more...]

The Lilac Bloomsday Run is a 7.46 miles (12 kms) race held annually in Spokane, Washington. The run was started in 1977 by Don Kardong and it saw 51,613 people register for it in 2013. In this post, I use R to collect data from their website, clean and... [Read more...]

This post presents a tiny slice of a complex and diverse India using charts. (Data retrieval from Wikipedia on 9 July, 2013 and the analysis were performed using R; charts were generated using ggplot2, googleVis and wordcloud. More information can be f... [Read more...]

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This is the last time I will talk about visualizing the best cities of 2012 based on Bloomberg Businessweek's rankings. In an earlier post on this topic, interactive applications to plot bar graphs and histograms for different characteristics... [Read more...]

Code updated based on feedback (see list of changes at the very end)Okay, that was a take on the mirror mirror on the wall quote from Snow White. This continues my saga of learning from the superb work done by the R-community and building on their... [Read more...]

This is an attempt at learning and interactively displaying few results using twitter data using text mining. Interactivity is implemented using RStudio's shiny server. Their documentation of demo scripts came in very handy. As a non-user of twitter, I... [Read more...]

Disclosure: I am not a health care professional, but just some one interested in playing with data and ways to represent them. I am not going to interpret findings here, but will make a remark or two about how to interpret them from the few graphs... [Read more...]

Data from slides on Bloomberg businessweek's site: http://images.businessweek.com/slideshows/2012-09-26/americas-50-best-citiesIn this post, I show how one can interact with a dataset and generate graphs on the fly (technically, I've predetermined... [Read more...]

Data from: http://images.businessweek.com/slideshows/2012-09-26/americas-50-best-citiesThis time, I used ggplot2 to recreate the graphs created previously using Tableau. After all, R and ggplot2 are open source and free. Yes, I could leave a space... [Read more...]

Figure shown to students in a particular class to show the effect of slacking after the mid-semester grades are received.Background information: A course has multiple components - Exams, projects, quizzes, assignments, etc. The objective of this set of... [Read more...]