April 2013

R Beginners – Plotting Locations on to a World Map

April 2, 2013 | Ram

This post is targeted at those who are just getting started plotting on maps using R.The relevant libraries are: maps, ggplot2, ggmap, and maptools. Make sure you install them.The Problem Let's take a fairly simple use case: We have a few points on the... [Read more...]

What’s New in Release 6.2: Additional ScaleR Features

April 2, 2013 | Thomas W DInsmore

by Thomas Dinsmore Revolution R Enterprise Release 6.2 is in track for General Availability on April 22. In previous posts, I've commented on support for open source R 2.15.3 and Stepwise Regression. Today I'll wrap this series with a summary of some of the other new features supported in this release. Parallel Random ... [Read more...]

Top 10 tips to get started with R

April 2, 2013 | Markus Gesmann

Be motivated. R has a steep learning curve. Find a problem you can't solve otherwise. E.g. plotting multivariate data, a statistical analysis for which an R function exists already. Download and install R. Get to know the R console. Learn how to instal... [Read more...]

This day in history (1997-04-01)

April 1, 2013 | Henrik Bengtsson

Today it's 16 years ago and 367,496 messages later since Martin Mächler started the R-help (321,119 msgs), R-devel (45,830 msgs) and R-announce (547 msgs) mailing lists [1] - a great benefit to all of us.  Special thanks to Martin and also thanks to everyone else contributing to these forums. [1] https://stat.ethz.ch/pipermail/r-help/1997... [Read more...]

Le Monde puzzle [#814]

April 1, 2013 | xi'an

The #814 Le Monde math puzzle was to find 100 digits (between 1 and 10) such that their sum is equal to their product. Given the ten possible values of those digits, this is equivalent to finding integers a1,…,a10 such that a1+…+a10=100 and a1+2a2+…+10a10=2a2x….x10a10, which reduces ...
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Install R

April 1, 2013 | Ewen Harrison

Video Files This file contains data on pain score after laparoscopic vs. open hernia repair. Age, gender and primary/recurrent hernia also included. The ultimate aim here is to work out which of these factors are associated with more pain after this operation. lap_hernia Script [crayon-533f1cc907137087602057/]   [Read more...]

Old Price Tables in Modern d3 Visualization

April 1, 2013 | klr

In my post Dust off 130 Year Old Gold Books on Google Bookshelf, I reproduced some of the old and way out of copyright price tables from the appendices in Gold and Prices Since 1873 by James Laurence Laughlin using latticeExtra xyplot. Now, with the clickme multiline d3 ractive built in my ... [Read more...]

New Toy package wingui

April 1, 2013 | andrew

A new toy package that I have been playing with has just been submitted to CRAN.  I called it wingui.  It works off the original windows R GUI.  The idea is to be able to adjust the advanced attributes for the window through a reference object GUI.  Right now it ... [Read more...]

R User Groups Continue to Grow

April 1, 2013 | Joseph Rickert

by Joseph Rickert R user groups seem to be sprouting all over. Since last September we have noticed ten new groups worldwide: Auckland, New Zealand: Auckland-R-Users-Group (AKLRUG) had 33 people attend their March 8th meeting Chang Mai Thailand: Chang Mai is the first R user group in Thailand Durban, South Africa: ... [Read more...]

A nifty line plot to visualize multivariate time series

April 1, 2013 | beckmw

A few days ago a colleague came to me for advice on the interpretation of some data. The dataset was large and included measurements for twenty-six species at several site-year-plot combinations. A substantial amount of effort had clearly been made to ensure every species at every site over several years ... [Read more...]

R Tackles Big Garbage

April 1, 2013 | Bob Muenchen

April 1, 2013 – Although the capabilities of the R system for data analytics have been expanding with impressive speed, it has heretofore been missing important fundamental methods. A new function works with the popular plyr package to provide these missing … Continue reading → [Read more...]

A pictorial history of US large cap correlation

April 1, 2013 | Pat

How has the distribution of correlations changed over the last several years? Previously Posts about correlation boxplots explained Data Daily returns of 443 large cap US stocks from 2004 through 2012 were used.  The sample correlations — almost 98,000 of them — during each year were created. If we were actually using the correlations, then … Continue ... [Read more...]
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