2646 search results for "GIS"

Revolution Analytics Spring Webinar Series

April 17, 2012
By

The webinar team at Revolution Analytics has put together a great program over the next couple of months. With a mix of guest speakers and Revolution Analytics staff, this series will cover topics as diverse as Big Data with R and Hadoop, integrating R with MS Office, spatial statistics with R, data mining with R, retail marketing analytics, and...

Read more »

How NOAA uses R to forecast river flooding

April 16, 2012
By
How NOAA uses R to forecast river flooding

Thanks to the lower-than-usual snowfall over most of the US this past winter, there's low risk of major flooding as the snow melts this Spring (for the first time in four years!). Nonetheless, being able to forecast river flood events is of critical importance to local emergency managers, water & electric utilities, river navigation companies, and the US Army...

Read more »

ggplot2 Time Series Heatmaps

April 15, 2012
By
ggplot2 Time Series Heatmaps

How do you easily get beautiful calendar heatmaps of time series in ggplot2? E.g:From MarginTaleI was impressed by the lattice-based  implementation from Paul Bleicher of Humedica, which you can find referenced in http://blog.revolutionanalytics.c...

Read more »

Visualization of Reading Level Frequency by Congressional Bill Stage

April 15, 2012
By
Visualization of Reading Level Frequency by Congressional Bill Stage

  Here’s a fun example of how you might use my data on Congressional bill length and complexity.  Imagine you want to understand the empirical distribution of Flesch-Kincaid reading level for Congressional bills and how this distribution is related to … Continue reading →

Read more »

Linguistic Notation Inside of R Plots!

April 14, 2012
By
Linguistic Notation Inside of R Plots!

So, I've been playing around with learning knitr, which is a Sweave-like R package for combining LaTeX and R code into one document. There's almost no learning curve if you already use Sweave, and I find a lot of knitr's design and usage to be a lot nicer.I wasn't going to make a blog post or tutorial about...

Read more »

knitr Performance Report-Attempt 1

April 13, 2012
By
knitr Performance Report-Attempt 1

I get very excited about new R packages, but rarely is my excitement so fulfilled as with knitr.  Even with no skill, I have already been able to adapt the example Yihui Xie provides in his knitr Graphics Manual into a crude first version of a per...

Read more »

R Statistics Mobile Console (iPhone)

April 13, 2012
By
R Statistics Mobile Console (iPhone)

I’m trying to make a mobile version of R-GUI, here is one (trying with iPhone emulator), not so beautiful, but still work. Try at CloudStat Mobile. Below are the screenshots: Homepage Web-based R Console Statistical Apps Directory ( R Apps ) ...

Read more »

One app, three languages

April 13, 2012
By

This past week at work I had the opportunity to code the same algorithm using each of the three scientific programming/scripting languages I'm familiar with:MatlabPythonRThe list above is the order that the (re)-coding was done and serves as a beginnin...

Read more »

US House Prices, Default and Bankruptcy Rates in R

April 13, 2012
By
US House Prices, Default and Bankruptcy Rates in R

Some time ago I got inspired by a post on r-bloggers.com, showing the housing bubble in several US cities, nicely done with ggplot. I extended this to incorporate two measures of problems in the consumer credit markets: the percentage of people with a ...

Read more »

R in the CPB and the role of Open Source in Promoting Transparency and Austerity

April 12, 2012
By

The Revolution blog links to an O'Reilly  interview with two CIO's from the Consumer Protection Bureau. The gist of the interview is "Open Source is Great, we are using it for everything; R and Big Data are the next hot thing, et cetera".  I ...

Read more »