2963 search results for "GIS"

Visualizing rOpenSci collaboration

March 8, 2013
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Visualizing rOpenSci collaboration

We (rOpenSci) have been writing code for R packages for a couple years, so it is time to take a look back at the data. What data you ask? The commits data from GitHub ~ data that records who did what and when. Using the Github commits API we can gather data on who commited code to a...

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Visualizing rOpenSci collaboration

March 8, 2013
By
Visualizing rOpenSci collaboration

We (rOpenSci) have been writing code for R packages for a couple years, so it is time to take a look back at the data. What data you ask? The commits data from GitHub ~ data that records who did what and when. Using the Github commits API we can gather data on who commited code to a...

Read more »

Visualizing rOpenSci collaboration

March 8, 2013
By
Visualizing rOpenSci collaboration

We (rOpenSci) have been writing code for R packages for a couple years, so it is time to take a look back at the data. What data you ask? The commits data from GitHub ~ data that records who did what and when. Using the Github commits API we can gather data on who commited code to a...

Read more »

geom_point Legend with Custom Colors in ggplot

March 7, 2013
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geom_point Legend with Custom Colors in ggplot

Formerly, I showed how to make line segments using ggplot.Working from that previous example, there are only a few things we need to change to add custom colors to our plot and legend in ggplot.First, we'll add the colors of our choice. I'll do th...

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Visualizing neural networks from the nnet package

March 4, 2013
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Visualizing neural networks from the nnet package

Neural networks have received a lot of attention for their abilities to ‘learn’ relationships among variables. They represent an innovative technique for model fitting that doesn’t rely on conventional assumptions necessary for standard models and they can also quite effectively handle multivariate response data. A neural network model is very similar to a non-linear regression

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2013 World Universities Ranking

March 4, 2013
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2013 World Universities Ranking

The Times Higher Education (http://www.timeshighereducation.co.uk) released its World Reputation Ranking. The ranking employs survey consultation among invited-only academics to measure reputation among several universities. It is assumed to be the world’s largest opinion survey of this sort across the globe. Every year, a list of the top 100 most powerful university brands is released. Despite

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Revolution Analytics News Roundup

March 4, 2013
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Between the Strata conference and various announcements, last week was certainly a busy one for the crew here at Revolution Analytics. So I thought I'd take the opportunity to catch you up on some of the recent media articles you might have missed: The Wall Street Journal interviewed our new VP of Services Neera Talbert on the trend towards...

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Shiny with PerformanceAnalytics Example

March 4, 2013
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Shiny with PerformanceAnalytics Example

The folks at Rstudio have done some amazing work with the shiny package. From the shiny homepage, “Shiny makes it super simple for R users like you to turn analyses into interactive web applications that anyone can use.” Developing web applications has always appealed to me, but hosting, learning javascript, html, etc. made me put … Continue reading...

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All That Glitters

March 3, 2013
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All That Glitters

"The law itself follows Gold" Sextus Propertius.But what about stocks, bonds and real estate? Do they follow Gold too? Using the correlation data from my previous post, The Financial Crisis on Tape Part I, this question is easy to investigate. Indeed, ...

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Peace through Music. Country clustering using R and the last.fm API

March 3, 2013
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Peace through Music. Country clustering using R and the last.fm API

last.fm is an internet radio and music suggestion service. Registered users can also use last.fm to 'scrobble' tracks they've been listening to. last.fm then keeps track of a user's statistics in terms of top artists, albums and tracks.Luckily, last.fm...

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