Videos on Using R
In this post on his blog some months ago, Ethan Fosse drew attention to Anthony Damico's collection of over 90 videos on using the R software environment.Definitely worth looking at!© 2012, David E. Giles [Read more...]
August 2012
User Input using tcl/tk
I was inspired by Kay Cichini recent post on creating a a tcl/tk dialog box for users to enter variable values. I am going to have a use for this very soon so took some time to make it a bit more generic. What I wanted is a function ... [Read more...]
Quick SAP HANA and R usecase
DISCLAIMER: I'm not an SAP HANA expert or an R expert, not even a Python expert. I'm just a guy with a lot of ideas who loves to write blogs.The other day I was thinking about making some nice with SAP HANA and R, because people doesn't seem to ... [Read more...]
New R User Groups in San Antonio, Milwaukee, Nicaragua
We have three new local R user groups to announce this month. The Alamo City R Users Group in San Antonio becomes the fifth R user group in Texas. The group's just getting started, and volunteers are always welcome. Although not a dedicated R group, the Milwaukee Chapter of the ... [Read more...]
The fanplot package for R
My fanplot package has gone up on CRAN. Here is a online version of the vignette. Introduction The fanplot package contains a collection of R (R Development Core Team, 2012) functions to effectively display plots of sequential distributions such as … Continue reading →
[Read more...]
Highlights of R in Finance 2012
I unfortunately was not there, but we can vicariously enjoy it via the presentations that are posted on the conference website. Below is my take on the highlights (in chronological order). Peter Carl and Brian Peterson “Constructing Strategic Hedge Fund Portfolios” is wonderful from my perspective. Promoting random portfolios is ...
googleVis 0.2.17 is released: Displaying earth quake data
The next version of the googleVis package has been released on the project site and CRAN.
This version provides updates to the package vignette and a new example for the gvisMerge function. The new sections of the vignette have been featured on this ... [Read more...]
Zzzzzz….. – Quantified Self Toronto #14
Sleep is another one of those things like diet, where I feel if you asked anyone if they wanted to improve that area of their life most would say yes.I remember hearing a quote that sleep is like sex; no one is quite sure how much everyone else is ... [Read more...]
Rgdal Package: R crash during "writeGDAL" solved
Lost entire day fighting this ridicules crash during export of raster created in R to GeoTiff (other "rgdal" functions worked fine). This option worked well several months ago when I last time used it, so I wondered what happened. I searched ... [Read more...]
The Social Dynamics of the R Core Team
Recently a few members of R Core have indicated that part of what slows down the development of R as a language is that it has become increasingly difficult over the years to achieve consensus among the core developers of the language. Inspired by these claims, I decided to look ... [Read more...]
Zurich, Jul 2012 – Advanced Portfolio eBook
[This article was first published on Rmetrics blogs, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your [Read more...]
Now That We Live in Seattle
It has been just a few weeks since my wife, my son, and I moved to Seattle so that I could begin my postdoc at The Hutch. Now that we have been here a short time and are settled, we intend to start exploring Seattle, doing typical touristy things as ... [Read more...]
What have I been doing all these years?!
In which Mo Farah et al show James that he's got a nasty heel-strike [Read more...]
Tcl/Tk GUI Example with Variable Input by User
I recently used R with GUI-elements for the first time and browsed through the available online resources, but I didn't quite find what I was searching for: The user should be able to put in some variables and call a function with a button. In the end ... [Read more...]
Universal portfolio, part 10
Part 9 compared the wealth of Universal against other portfolio selection algorithms by using the experimental cumulative distribution function of the relative wealth. This leads to a very compact representation, but it completely hides the ... [Read more...]
RcppExamples 0.1.4
An updated version 0.1.4 of the
RcppExamples
package is now on on
CRAN.
RcppExamples
contains a few illustrations of how to use
Rcpp.
The NEWS entry is below: a new example was added illustrating use of the
(vectorised) random-number generators... [Read more...]
Animated GIF Annual Correlation of 48 Industries for 50 Years
Inspired by http://blogs.reuters.com/felix-salmon/2012/08/06/chart-of-the-day-hft-edition/, I thought I would build on 48 Industries (Dendrogram Ordered) Over 50 Years, “Trend is Not Your Friend” Applied to 48 Industries, and 48 Industries Since 19...
In case you missed it: July 2012 Roundup
In case you missed them, here are some articles from June of particular interest to R users. The Environmental Performance Index website uses R to rank countries by measures like environmental health and ecosystem vitality. A log-linear regression in R predicted the gold-winning Olympic 100m sprint time to be 9.68 seconds (... [Read more...]
Trends in run scoring – comparing the leagues
My previous two posts have looked a using R to create trend lines for the run scoring environments in the American and National leagues. This time around, I'll plot the two against each other to allow for some comparisons. (The code below assumes that you've read the data into your ... [Read more...]
RStudio server through ssh
R language has numerous IDEs – RStudio, Vim plugin, Eclipse plugin. RStudio really shines for R language, nevertheless Vim plugin might be well adapted for R if you are Vim guru. Eclipse? Who needs such behemoth? Turns out a student in Ljubljana badly needs it. Most of the time I use ... [Read more...]
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