573 search results for "sql"

Using R for classification in small-N studies

July 14, 2012
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Using R for classification in small-N studies

Rick Davies just wrote an interesting post which combined thoughts on QCA (and multi-valued QCA or mvQCA) and classification trees with thoughts on INUS causation and classification trees. The question was something like: how can we look at a small-to-medium set of cases (like a dozen or a hundred countries or development programs) and tease

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In case you missed it: June 2012 Roundup

July 11, 2012
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In case you missed them, here are some articles from June of particular interest to R users. The FDA goes on the record that it's OK to use R for drug trials. A review of talks at the useR! 2012 conference. Using the negative binomial distribution to convert monthly fecundity into the chances of having a baby in a...

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Sourcing Code from GitHub

July 10, 2012
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Sourcing Code from GitHub

In previous posts I described how to input data stored on GitHub directly into R. You can do the same thing with source code stored on GitHub. Hadley Wickham has actually made the whole process easier by combining the getURL, textConnection, and source commands into one function: source_url. This is in his devtools...

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Trend and Spatial Pattern of Poverty in the Philippines

July 9, 2012
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Trend and Spatial Pattern of Poverty in the Philippines

In a teaching demo that I have conducted, I discussed on how R can be used to analyze trends and spatial pattern of poverty incidence in the Philippines. Playing on the data I got from the National Statistical Coordination Board below is what I got.&...

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When SAP HANA met R – Bring home your graphics

When SAP HANA met R – Bring home your graphics

A couple of days ago, I started to think about SAP HANA and R on Amazon Web Services...as far as I know, graphics can't get generated using this kind of integration because the graphic will get generated on the server and could not make the trip back i...

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Solving Big Problems with Oracle R Enterprise, Part II

June 27, 2012
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Solving Big Problems with Oracle R Enterprise, Part II

Part II – Solving Big Problems with Oracle R Enterprise In the first post in this series (see https://blogs.oracle.com/R/entry/solving_big_problems_with_oracle), we showed how you can use R to perform historical rate of return calculations against investment data sourced from a spreadsheet.  We demonstrated the calculations against sample data for a small set of accounts.  While this worked...

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Querying DBpedia from R

June 24, 2012
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DBpedia is an extract of structured information from wikipedia. The structured data can be retrieved using an SQL-like query language for RDF called SPARQL. There is already an R package for this kind of queries named SPARQL.There is an S4 class Dbpedia part of my datamart package that aims to support the creation of predefined parameterized queries. Here is...

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Revolution Newsletter: June 2012

June 14, 2012
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The most recent edition of the Revolution Newsletter is out. The news section is below, and you can read the full June edition (with highlights from this blog and community events) online. You can subscribe to the Revolution Newsletter to get it monthly via email. Revolution R Enterprise 6 Now Available! The latest release of Revolution R Enterprise brings...

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Next R meeting in Paris INSEE: ggplot2 and parallel computing

June 12, 2012
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Next R meeting in Paris INSEE: ggplot2 and parallel computing

Hi, our group of R users from INSEE, aka FLR, meets monthly in Paris. Next meeting is on Wed 13 (tomorrow), 1-2 pm, room 539 (an ID is needed to come in,  map to access INSEE R), about ggplot2 and parallel computing. Since the first meeting in February, presentations have included hot topics like webscrapping, C in R, RStudio, SQLite

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Finding word use patterns in Wikileaks cables

June 12, 2012
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Finding word use patterns in Wikileaks cables

6/18: A follow-up to this post is now available here.Recent DiscoveriesWhen I was a diplomat, I was always interested in the Wikileaks cables and what could be done with them. Unfortunately, I never got a chance to look at the site in depth, due to security policies. Now that the ex- is firmly prepended to diplomat...

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