Create odf, pdf and html report from a single Sweave document

March 24, 2010
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A lot of us know about Sweave and Latex and they work very well in creating elegant dynamic reports from R computation. However, sometimes we would like to also produce a word processing document for a colleague or a html version of the same report. Now there are tools for producing these like odfWeave. But wouldn't it be...

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Create odf, pdf and html report from a single Sweave document

March 24, 2010
By

A lot of us know about Sweave and Latex and they work very well in creating elegant dynamic reports from R computation. However, sometimes we would like to also produce a word processing document for a colleague or a html version of the same report. Now there are tools for producing these like odfWeave. But wouldn't it be...

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Using vectors to customize placement of tick marks and labels on a plot

March 24, 2010
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Using vectors to customize placement of tick marks and labels on a plot

OK, let's say you want to create a plot and you need an easy way to specify where along the scale your tick marks and labels land, as opposed to having R just decide itself. An easy way to do that is to create a vector and assign the axis characteristi...

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Using vectors to customize placement of tick marks and labels on a plot

March 24, 2010
By
Using vectors to customize placement of tick marks and labels on a plot

OK, let's say you want to create a plot and you need an easy way to specify where along the scale your tick marks and labels land, as opposed to having R just decide itself. An easy way to do that is to create a vector and assign the axis characteristi...

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A Demo for the Ratio Estimation in Sampling Survey (Animation)

March 24, 2010
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A Demo for the Ratio Estimation in Sampling Survey (Animation)

mber Watkins gave me a suggestion on the animation for the ratio estimation, and I think this is a good topic for my animation package. I’ve finished writing the initial version of the function sample.ratio() for this package, which will appear in the version 1.1-2 a couple of days later. As we know, the benefit

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ECG Signal Processing

March 24, 2010
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ECG Signal Processing

After reading (most of) “The Scientists and Engineers Guide to Digital Signal Processing” by Steven W. Smith, PhD, I decided to take a second crack at the ECG data. I wrote a set of R functions that implement a windowed (Blackman) sinc low-pass filter. The convolution of filter kernel with the input signal is conducted

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Statistical learning with MARS

March 24, 2010
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Steve Miller at the InformationManagement blog has been looking at predictive analytics tools for business intelligence applications, and naturally turns to the statistical modeling and prediction capabilities of R. Says Steve: The R Project for Statistical Computing continues to dazzle in the open source world, with exciting new leadership at Revolution Computing promising to align commercial R with business...

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RXQuery

March 24, 2010
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RXQuery

I have put a new version of the RXQuery package which interfaces to the Zorba XQuery engine. This makes the package compatible with the 1.0.0 release of Zorba for external functions. The package allows one to use XQuery from within R and to use R fu...

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Lessons Learned from EC2

March 24, 2010
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Lessons Learned from EC2

A week or so ago I had my first experience using someone else’s cluster on Amazon EC2. EC2 is the Amazon Elastic Compute Cloud. Users set up a virtual computing platform that runs on Amazon’s servers “in the cloud.” Amazon EC2 is not just another cluster. EC2 allows the user to create a disk image containing an operating system...

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Font Families for the R PDF Device

March 24, 2010
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otivated by the excellent R package pgfSweave, I begin to notice the font families in my graphs when writing Sweave documents. The default font family for PDF graphs is Helvetica, which is, in most cases (I think), inconsistent with the LaTeX font styles. Some common font families are listed in ?postscript, and we can take

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oro.nifti 0.1.4

March 24, 2010
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The latest release of oro.nifti (0.1.4) has been released on CRAN.  New features include:Added text capability in the (unused) fourth pane in orthographic()A vignette is now included (taken from dcemriS4)

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oro.nifti 0.1.4

March 24, 2010
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The latest release of oro.nifti (0.1.4) has been released on CRAN.  New features include:Added text capability in the (unused) fourth pane in orthographic()A vignette is now included (taken from dcemriS4)

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oro.dicom 0.2.5

March 24, 2010
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The latest version of oro.dicom (0.2.5) has been released on CRAN.  New features include:Added "mosaic" capability when creating 3D arrays from DICOMdicomTable() now accepts single DICOM fileBetter handling of SequenceItem tags when reading in DIC...

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oro.dicom 0.2.5

March 24, 2010
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The latest version of oro.dicom (0.2.5) has been released on CRAN.  New features include:Added "mosaic" capability when creating 3D arrays from DICOMdicomTable() now accepts single DICOM fileBetter handling of SequenceItem tags when reading in DIC...

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R 2.11.0 due date

March 23, 2010
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This is the announcement as posted in the mailing list : This is to announce that we plan to release R version 2.11.0 on Thursday, April 22, 2010. Those directly involved should review the generic schedule at http://developer.r-project.org/release-checklist.html The source tarballs will be made available daily (barring build troubles) via http://cran.r-project.org/src/base-prerelease/ For the R Core

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The “Future of Open Source” Survey – an R user’s thoughts and conclusions

March 23, 2010
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The “Future of Open Source” Survey – an R user’s thoughts and conclusions

Over a month ago, David Smith published a call for people to participate in the “Future of Open Source” Survey. 550 people (and me) took the survey, and today I got an e-mail with the news that the 2010 survey results are analysed and where published in the “Future.Of.Open.Source blog” In the following (38 slides) presentation: I would like...

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RClimate Script: Global Mean Sea Level Trend by Month

March 23, 2010
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RClimate Script: Global Mean Sea Level Trend by Month

This RClimate Script lets users read a NetCDF file and plot the latest satellite altimetry based global mean sea level data  from 1993 to the latest completed month. The trend chart shows NOAA’s Laboratory for Satellite Altimetry altimeter global mean sea level with the seasonal signal removed and inverted barometer. I will add this chart

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Video: ggplot2 Creator Hadley Wickham’s Short Course on Data Visualization Using R

March 23, 2010
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Hadley Wickham, creator of ggplot2, has posted a 2 hour video on data visualization using R. You can find links to the videos and slides over at Revolutions Blog. Check back here soon. I am working with Hadley to arrange a day-long ggplot2 short cours...

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Video: Hadley Wickham gives a short course on graphics with R

March 23, 2010
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Video: Hadley Wickham gives a short course on graphics with R

Hadley Wickham (the creator of the popular ggplot2 graphics package for R) has posted video of a 2-hour short course on Visualisation in R at his blip.tv channel. The video is split into four thirty-minute segments: Basic Graphics Displaying Large Data Data manipulation and transformations Polishing your plots for publication The course is peppered with self-guided exercises, for which...

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Updated Site Map for Jeromy Anglim’s Blog Psychology and Statistics

March 23, 2010
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Every Six months or so I like to update the Site Mapfor my blog jeromyanglim.blogspot.com. Thus, if you're new to the blog, The Site Map provides an overview of previous blog content organised by topic. RSS Feed: http://feeds.feedburner.com/jeromyang...

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Updated Site Map for Jeromy Anglim’s Blog Psychology and Statistics

March 23, 2010
By

Every Six months or so I like to update the Site Mapfor my blog jeromyanglim.blogspot.com. Thus, if you're new to the blog, The Site Map provides an overview of previous blog content organised by topic. RSS Feed: http://feeds.feedburner.com/jeromyang...

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Playing with the ‘playwith’ package

March 23, 2010
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Playing with the ‘playwith’ package

Abilities of R for creating graphics is great, but one thing I always missed is the possibility of creating interactive plots and being able to look at graphs while changing one ore more parameters. I know that there is rggobi, but so far I always ran into problems with flexibility each time I wanted to

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ggplot2: Changing the Default Order of Legend Labels and Stacking of Data

March 23, 2010
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ggplot2: Changing the Default Order of Legend Labels and Stacking of Data

“How to change the order of legend labels” is a question that gets asked relatively often on ggplot2 mailing list. A variation of this question is how to change the order of series in stacked bar/lineplots. While these two questions seem to be related, in fact they are separate as the legend is controlled by

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R Tips in Stat 511

March 22, 2010
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R Tips in Stat 511

Here are some (trivial) R tips in the course Stat 511. I’ll update this post till the semester is over. Formatting R Code Reading code is pain, but the well-formatted code might alleviate the pain a little bit. The function tidy.source() in the animation package can help us format our R code automatically. By default

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RInside release 0.2.2

March 22, 2010
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The shiny new 0.2.2 release of RInside has just been uploaded to CRAN; it should hit mirrors tommorow. Sources are also at my RInside page. RInside is a set of convenience classes to facilitate embedding of R inside of C++ applications. It works parti...

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RInside release 0.2.2

March 22, 2010
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The shiny new 0.2.2 release of RInside has just been uploaded to CRAN; it should hit mirrors tommorow. Sources are also at my RInside page. RInside is a set of convenience classes to facilitate embedding of R inside of C++ applications. It works pa...

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R 2.11.0 scheduled for April 22

March 22, 2010
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Announced this morning on the r-announce mailing list is the impending release of R 2.11.0, scheduled for April 22. As usual, the release soon goes into a beta-test phase, with updated sources to be available on the 22nd and binaries to follow a few days thereafter.

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Charting SVN commits with R

March 22, 2010
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Charting SVN commits with R

Want to get a quick sense of who are the most active committers to your SVN project? Using just a few lines of R code and the SVN log file, reader and new R user Rhys Kidd created this chart to review commits to the Freespace 2 Source Code Project: Rhys posts the 6 lines of R code to...

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New FECHell 0.1.9

March 22, 2010
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Our FEC report file library FECHell has been updated to 0.1.9. The release includes a half dozen bug fixes and the following new features: Speed improvements – Schedule and field names names are matched by compiled regular expressions instead of brute-force string matching, resulting in a ~25% speed increase for large files. DEF file fixes

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