2590 search results for "map"

Subtle Variable Scoping in R

July 17, 2013
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  A languages manual usually defines how a language behaves, but does not warn you in cases where you assume a feature should be supported but isn’t. As an example, I will talk about the subtle variable scoping in R language. {} code blocks A lot of programmers coming from C/C++/Java will assume that code...

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Reflections on UseR! 2013

July 12, 2013
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This week I’ve been at the R Users conference in Albacete, Spain. These conferences are a little unusual in that they are not really about research, unlike most conferences I attend. They provide a place for people to discuss and exchange ideas on how R can be used. Here are some thoughts and highlights of the conference, in no...

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Popularity bigdata / large data packages in R and ffbase useR presentation

Popularity bigdata / large data packages in R and ffbase useR presentation

(This article was first published on BNOSAC - Belgium Network of Open Source Analytical Consultants, and kindly contributed to R-bloggers) A few weeks ago, Rstudio released it's download logs, showing who downloaded R packages through their CRAN mirror. More info: http://blog.rstudio.org/2013/06/10/rstudio-cran-mirror/ This is very nice information and it can be used to show the popularity of packages with R, which has...

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Visualizing a tiny slice of India’s demographics with information from Wikipedia

July 10, 2013
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Visualizing a tiny slice of India’s demographics with information from Wikipedia

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...

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Unicode Tips in Python 2 and R

July 9, 2013
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Unicode Tips in Python 2 and R

Most of time, I don’t need to deal with different encodings at all. When possible, I use ASCII characters. And when there is a little processing in Chinese characters or other Unicode characters, I use .Net languages or JVM languages, in which every string is Unicode and of course when the characters are displayed they are displayed as characters...

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A possibility for use R and Hadoop together

July 8, 2013
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(This article was first published on Milano R net, and kindly contributed to R-bloggers) As mentioned in the previous article, a possibility for dealing with some Big Data problems is to integrate R within the Hadoop ecosystem. Therefore, it’s necessary to have a bridge between the two environments. It means that R should be capable of handling data the...

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Another view of ordinary regression

July 8, 2013
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Another view of ordinary regression

This is something I’ve been meaning to write for ages. My formal training for most things is limited. Like a lot of folks, I’m an autodidact. This is good in that I’m always learning and always studying those things that I enjoy. At the same time, it means that I take in information in a

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RFM Customer Analysis with R Language

July 7, 2013
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RFM Customer Analysis with R Language

For database marketing or direct marketing people, they are always concerned about two questions before they send out mails or make calls to their customers:- How can they segment the customers in the database to find out who are more likely to response to their mails or buy their products? Which type of customers they

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ggplot2 Chloropleth of Supreme Court Decisions: A Tutorial

July 4, 2013
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ggplot2 Chloropleth of Supreme Court Decisions: A Tutorial

I don't do much GIS but I like to. It's rather enjoyable and involves a tremendous skill set. Often you will find your self grabbing data sets from some site, scraping, data cleaning and reshaping, and graphing. On the ride … Continue reading →

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Fun simulating Wimbledon in R and Python

July 4, 2013
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Fun simulating Wimbledon in R and Python

R and Python have different strengths. There's little you can do in R you absolutely can't do in Python and vice versa, but there's a lot of stuff that's really annoying in one and nice and simple in the other. I'm sure simulations can be run in R, but it seems frightfully tricky. Recently I wrote a simple Tennis simulator...

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