1175 search results for "tutorial"

Tutorial: Using plot() function

April 19, 2012
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Tutorial: Using plot() function

Hello Readers! This is my first post as a member ofR-bloggers. In this post I'm going to talk about the basic plotting in R, fortwo dimensional. This is a tutorial for beginners in R.To begin with, let's define a vector first. Say wehave vector x, whic...

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SCRIPT for NIR "DEMO" Tutorial – 001

March 28, 2012
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SCRIPT for NIR "DEMO" Tutorial – 001

########### RAW NIR Demo Data##################################demo<-read.table("demo.txt",header=TRUE)VIS<-demoVIS<-as.matrix(VIS)NIR<-demoNIR<-as.matrix(NIR)ALL<-demoALL<-as.matrix(ALL)Protein<-demo...

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R and Hadoop: Step-by-step tutorials

March 14, 2012
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R and Hadoop: Step-by-step tutorials

At the recent Big Data Workshop held by the Boston Predictive Analytics group, airline analyst and R user Jeffrey Breen gave a step-by-step guide to setting up an R and Hadoop infrastructure. Firstly, as a local virtual instance of Hadoop with R, using VMWare and Cloudera's Hadoop Demo VM. (This is a great way to get familiar with Hadoop.)...

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Slides from today’s Big Data Step-by-Step Tutorials: Infrastructure series and Intro to R+Hadoop with RHadoop’s rmr

March 10, 2012
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Slides from today’s Big Data Step-by-Step Tutorials: Infrastructure series and Intro to R+Hadoop with RHadoop’s rmr

Slides from the Boston Predictive Analytics Big Data Workshop tutorials: Big Data Step-by-Step: Infrastructure 1/3: Local VM Big Data Step-by-Step: Infrastructure 2/3: Running R and RStudio on EC2 Big Data Step-by-Step: Infrastructure 3/3: Taking it to the cloud... easily... with Whirr Big Data Step-by-Step: Using R & Hadoop (with RHadoop's rmr package)

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Two-minute tutorials for R beginners

March 9, 2012
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R user Anthony Damico has created "Twotorials": a series of two-minute tutorials for newcomers to R. Topics include how to download and install R, how to do simple arithmetic in r, how to work with data tables in r and many others. The tutorials are especially useful for users of R on Windows, with video demonstrations using the Windows...

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R Tutorial Series: Centering Variables and Generating Z-Scores with the Scale() Function

March 1, 2012
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R Tutorial Series: Centering Variables and Generating Z-Scores with the Scale() Function

Centering variables and creating z-scores are two common data analysis activities. While they are relatively simple to calculate by hand, R makes these operations extremely easy thanks to the scale() function. Tutorial FilesBefore we begin, you may wan...

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The undiscovered country – a tutorial on plotting maps in R

February 25, 2012
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The undiscovered country – a tutorial on plotting maps in R

The ability to handle maps and geospatial images is always a nice trick to have up your sleeve. Almost any sizeable report will contain a map – of a locality, of a country, or of the world. However, very few analysts have the ability to produce these plots for themselves and often resort to using...

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Pre-conference tutorials announced for useR! 2012

January 30, 2012
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The worldwide R user conference, useR! 2012, will take place this year June 12-15 in Nashville, Tennessee. In addition to the regular program of invited and contributed talks, a highlight of every useR! is the pre-conference tutorials: hand-on, half-day in-depth expert-led sessions with a focused on a specific area of methodology with R. This year's roster of tutorials has...

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R Tutorial Series: Citing R with EndNote

January 6, 2012
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R Tutorial Series: Citing R with EndNote

Unfortunately, due to the vexing complexities of academic style guides and the limitations of associated software packages, citing a non-standard name, such as Cher, Prince, or R Development Core Team can be problematic. Thankfully, I have discovered a...

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Tutorial on SPARQL Package for R

December 19, 2011
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Tutorial on SPARQL Package for R

Tools are major enablers of Linked Science. One crucial aspect is how to access and analyze data, and especially how to get only that part of data which is of interest for a given research question.  Linked Data solves the … Continue reading →

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