2281 search results for "MAP"

Slightly-more-than-basic sentiment analysis

September 14, 2012
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I became interested in sentiment analysis a few months ago as a matter of pure practicality. The company I work for does a lot of customer-satisfaction surveys. Respondents rate various aspects of our products, but they also have the opportunity to answer a bunch of open-ended questions in their own voices. That kind of information

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Visualize complex data with subplots

September 14, 2012
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Visualize complex data with subplots

Today's guest post comes from Garrett Grolemund, a software developer at RStudio — ed. I think of graphs as a type of visual summary for data. Yet I rarely see graphs used this way within visualizations. Consider tile plots. They group data into 2d bins and then summarize each group with a number. This approach is a go-to tool...

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Great Circles, Black Holes, and Community Events Part 3 of 3

September 14, 2012
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Great Circles, Black Holes, and Community Events Part 3 of 3

The second community event is the Soldier Hollow Junior Olympics (SoHo), again found in the Heber Valley area. Building upon the previous posts (part 1 and part 2) this one will show an event that has more people coming from greater distance. Take the bar charts for the number of participants and the cities they are...

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googleVis — Diaoyu Islands

September 14, 2012
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googleVis — Diaoyu Islands

China just announced the Diaoyu Islands baselines yesterday (US EST). Take a look at their locations (Clike here for the google map).

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Improved net stacked distribution graphs via ggplot2 trickery

September 13, 2012
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Improved net stacked distribution graphs via ggplot2 trickery

Net stacked distribution graphs are a nice way of comparing data on a Likert scale. It strips out the neutral responses and centers the responses around the center of the graph so you can quickly compare agreement and disagreement on different issues. Here we'll build on Jason Becker's work on doing this in ggplot2 -- it requires...

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Automatic cleaning of messy text data

September 13, 2012
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Tutorials for Learning Visualization in R

September 12, 2012
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Tutorials for Learning Visualization in R

Today's guest post comes from Nathan Yau. Nathan runs FlowingData, a site on statistics and visualization, and is the author of Visualize This. Years ago, when I started FlowingData, the purpose of the blog was to catalog and think out loud about visualization, in its many varieties. In the beginning I was talking to myself for the most part,...

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Great Circles, Black Holes, and Community Events Part 2 of 3

September 12, 2012
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Great Circles, Black Holes, and Community Events Part 2 of 3

This post will examine the Heber Valley Railroad, a small town tourist attraction using event gravitational pull. Using the information from part 1 the two factors associated with the events gravity, the number of participants, and the distance they traveled. The number of participants can be shown using bar charts, histograms, and summary tables. The distance traveled...

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wordcloud makes words less cloudy

September 11, 2012
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wordcloud makes words less cloudy

  An update to the wordcloud package (2.2) has been released to CRAN. It includes a number of improvements to the basic wordcloud. Notably that you may now pass it text and Corpus objects directly. as in: #install.packages(c("wordcloud","tm"),repos="http://cran.r-project.org") library(wordcloud) library(tm) wordcloud("May our children and our children's children to a thousand generations, continue to enjoy the

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Integrate data and reporting on the Web with knitr

September 11, 2012
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Today's guest post comes from Yihui Xie, author of the knitr package — ed. Hi, this is Yihui Xie, and I'm guest posting on the Revolutions blog to talk about one aspect of the knitr package: how we can integrate data analysis and reporting in R with the Web. This post includes both the work that has been done...

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