Blog Archives

R User Group meetings in New Jersey, Basel, Manchester and London

October 16, 2013
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  Mango Solutions are pleased to announce the forthcoming free user group meetings for R users and enthusiasts. All meetings are free to attend and consist of a few R related presentations followed by networking time. If you are an R user or have an interest in R please come along.   22 October 2013 – New Jersey R...

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Dealing with a stochastic fitness function in GA package

October 4, 2013
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Dealing with a stochastic fitness function in GA package

Guest post by Kim Man Lui, PhD. (about GA – an R package for optimization using genetic algorithms) The GA package (version 2.0) is a generic package in which one can define his/her own functions of fitness, selection, crossover and mutation. Among those functions, the most important is the fitness. However, in the GA package, the fitness function has...

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New JerseyR User Group Meeting – 22nd October 2013, Iselin NJ

October 2, 2013
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We are pleased to announce details of the next New Jersey R meeting; this is a free event open to anyone using or interested in using R. Venue:  Hilton Woodbridge, 120 Wood Avenue South, Iselin, NJ 08830 Time:     6.30 pm – 10pm Presentations (from 7pm) • Using knitr to create reports -  Adam Rich, Beazley Group • Using R...

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What’s the Most “Concave” State in the U.S.? Using R to Solve a Geography Puzzle

October 1, 2013
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What’s the Most “Concave” State in the U.S.? Using R to Solve a Geography Puzzle

This is a guest post by Todd Schneider and the original link is http://news.rapgenius.com/Atodd-whats-the-most-concave-state-in-the-us-using-r-to-solve-a-geography-puzzle-lyrics. The puzzle: find two points inside the United States such that Both points are in the same state The straight line segment (shortest great circle) connecting them crosses the largest number of distinct states This came up during a recent road trip through Pennsylvania, Maryland, West Virginia,...

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Statistics.com Partners With CrowdANALYTIX to Offer New Online Course With Crowdsource Contest As Project

September 11, 2013
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Statistics.com, a provider of online education in statistics and analytics, announces a partnership with CrowdANALYTIX, a predictive modeling “managed crowdsourcing” company, offering a new online course, “Applied Predictive Analytics in partnership with CrowdANALYTIX“, which will run from Oct. 11 to Nov 8, 2013. Crowdsourcing, using the power of the crowd to solve problems, has been used for many functions...

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Monthly R jobs on r-bloggers

September 6, 2013
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R_jobs

R-bloggers is now offering a new “R jobs” post, that will be published (around) once a month. If you are interested in asking for a job to be posted on r-bloggers, please e-mail me at: [email protected] (please write in the subject line the text “R job” so I could have easy e-mail filtering on it ). This first post...

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Rcmdr version 2.0-0 now on CRAN

August 23, 2013
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Rcmdr version 2.0-0 now on CRAN

Guest post by John Fox (based on his announcement in the mailing list) Dear R-help list members, Version 2.0-0 of the Rcmdr package is now on CRAN and should appear presently on the various CRAN mirrors. As its number implies, this version represents a milestone in the development of the package, which first appeared on CRAN more than 10 years ago. The...

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Free R Graphics Workshop, Copenhagen, Denmark, 26th August

August 13, 2013
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Mango Solutions are pleased to announce a free R Graphics Workshop in Copenhagen on Monday 26th August (6-8pm). The workshop is open to all and any interested R users or those wishing to learn more about R.   The workshop will focus on using R to create powerful graphics, specifically covering: •             An introduction to R •             Getting data into...

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Enhanced meboot package, simulating regression standard errors

August 11, 2013
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In my June 25 post I described R- (i) code to change scale without changing the mean, and (ii) code to make a probability distribution symmetric by modifying order statistics.  Both are commonly encountered problems by R programmers.  My coauthor Javier Lopez-de-Lacalle of Spain has incorporated an efficient version of my code inside the maximum entropy bootstrap (meboot) package in R See the package...

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The R journal – Volume 5/1, June 2013

July 3, 2013
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r_project

The new R Journal is out! Click for a complete table of content with links to all papers.

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