1392 search results for "tutorial"

Submit your talks for the R user conference

January 19, 2011
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useR! 2011, the annual R user conference supported by the R Foundation for Statistical Computing, will be held this year in the United Kingdom at the University of Warwick (which is located, oddly enough, in Coventry). Last year's conference featured dozens of presentations on R's use in pretty much every domain of analysis, science and research. There were talks...

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Review: R in a Nutshell by Joseph Adler

January 17, 2011
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Review: R in a Nutshell by Joseph Adler

Summary: Very comprehensive and very useful, but not good for a beginner. Great book though – definitely has a place on my bookshelf. Reference: Adler, J., 2010, R in a Nutshell, O’Reilly, Sebastopol, CA, 611 pages  O’Reilly Link After reviewing a book about R designed for beginners (see my previous post) I thought I’d step

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In case you missed it: December Roundup

January 17, 2011
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In case you missed them, here are some articles from December of particular interest to R users. A Facebook employee created a beautiful visualization of social connections around the world, which made a lot of news on the Web. The creator, Paul Butler, explained how he did it using R. With sponsorship from Revolution Analytics, the R/Finance conference in...

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Webinar on Portfolio Design, Optimization and Stability Analysis, Jan 26

January 14, 2011
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We're very excited to host a new webinar from some of the leading researchers in portfolio design: Diethelm Würtz and Mahendra Mehta for the Rmetrics Association. This webinar will give an overview on current and recent developments and tools for portfolio design, optimization and stability analysis with the R/Rmetrics software environment. This webinar will review content available in the...

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Remove all rows of an R dataframe

January 13, 2011
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Remove all rows of an R dataframe

I should have probably figured this out a long time ago, but as I get deeper into programming with R, I am finding the need to remove all rows from a dataframe.  I was making this alot harder than it had to be. your.df<- your.df Replace your.df with, your dataframe and you are good

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R Code for googleVis Demo

January 12, 2011
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R Code for googleVis Demo

# ------------------------------------------------------------------# | PROGRAM NAME: googleVis_R# | DATE: 1/12/11 # | CREATED BY: Matt Bogard# | PROJECT FILE: # |----------------------------------------------------------------# | PURPOSE: ...

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Create Motion Charts in R with the GoogleVis package

January 11, 2011
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Hans Rosling popularized Motion Charts -- 2-d scatterplots that animate over time -- with the GapMinder project. Motion Charts were taken to their augmented-reality extreme in this clip from the BBC programme, The Joy of Stats, but now you can create similar (if less audacious) motion charts for yourself with just R and a Flash-enabled browser. First, you'll need...

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sab-R-metrics: Subsetting, Conditional Statements, ‘tapply()’, and VERY simple ‘for loops’

January 11, 2011
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In my last sab-R-metrics post, I went over some basics of calling data and creating vectors or new data from those. Here, I want to extend that to full subsets of data and go on to use some of the basic functions in R so that we can begin plotting in the next tutorial.Before I begin, I...

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sab-R-metrics: Subsetting, Conditional Statements, ‘tapply()’, and VERY simple ‘for loops’

January 11, 2011
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In my last sab-R-metrics post, I went over some basics of calling data and creating vectors or new data from those. Here, I want to extend that to full subsets of data and go on to use some of the basic functions in R so that we can begin plotting in the next tutorial.Before I begin, I...

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Reasons for Transitioning to Vim: Bringing LaTeX, R, Sweave and More under One Roof

January 10, 2011
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Reasons for Transitioning to Vim: Bringing LaTeX, R, Sweave and More under One Roof

This post describes the reasons for my transition to Vim.Brief BackgroundOver the years I've used a lot of different text editors on Windows.In general, I've used whatever text editor came with a program.When I started using R, I moved from Rgui throug...

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