1206 search results for "tutorial"

Revolution Analytics at Strata 2012

February 27, 2012
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One of my favourite conferences, Strata: Making Data Work, starts tomorrow in Santa Clara, CA. Revolution Analytics is a proud sponsor, and I'll be there with the team to listen to some great talks and to meet other R users at our booth in the exhibition hall. There will be several R-related talks and tutorials during the conference, including...

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Setting up FastRWeb on Mac OS X

February 23, 2012
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Setting up FastRWeb on Mac OS X

FastRWeb is an infrastructure that allows any webserver to use R scripts for generating dynamic content, such as web pages and graphics. In this post, you’ll learn how to install and set up FastRWeb on a Mac. This tutorial is expendable to any Unix-like operating system. It is an adaptation from Jay Emerson’s post, Setting

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DNA methylation (RRBS or target capture) analysis with R

February 20, 2012
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Reduced Representation Bisulfite sequencing (RRBS) is a popular technique for measuring methylation levels across genome. Although it does not have the full genome coverage, it covers many important regions for methylation. Below, I shared a tutorial a...

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New R User Group at Berkeley

February 20, 2012
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There's a new R user group in Berkely, CA: The Berkeley R Language Beginner Study Group. Join this small group for a step-by-step approach to learn the language R. Each session will be filled with examples and participants are welcome to suggest and present topics. If you have just started with R this is the perfect chance to find...

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How to Install R for Windows and Use a Few Basic Functions

February 20, 2012
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This video shows how to obtain and install R on the Windows (PC) platform. It also shows a few basic functions in R, such as how to install packages in R and load them for use.

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How to Install R for Mac and Use a Few Basic Functions

February 16, 2012
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This video shows how to obtain and install R on the Mac OS X platform. It also shows a few basic functions in R, such as how to install packages in R and load them for use. A PC version will follow shortly

R-Bloggers Steadily Growing

February 15, 2012
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R-Bloggers Steadily Growing

Description: Number of blogs aggregated into the R-Bloggers news site. Data: http://www.r-bloggers.com/ Analysis: R-Bloggers is a website devoted to news and tutorials related to the R programming language. The content is generated by a growing ...

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In case you missed it: January Roundup

February 13, 2012
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In case you missed them, here are some articles from January of particular interest to R users. Sponsorships from Revolution Analytics are now available for local R user groups in 2012. The winners of the Applications of R in Business Contest have been announced. The coefplot package visualizes model coefficients and standard errors in a line chart. Revolution Analytics...

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"R" PLS Package: Multiple Scatter Correction (MSC)

February 12, 2012
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"R" PLS Package: Multiple Scatter Correction  (MSC)

MSC (Multiple Scatter Correction) is a Math treatment to correct the scatter in the spectra. The scatter is produced for different physical circumstances as particle size, packaging.Normally scatter make worse the correlation of the spectra with the constituent of interest.Almost all the chemometric software’s available include this math treatment and of course “R” have it as well in the...

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"R": Predicting a Test Set (Gasoline)

February 9, 2012
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"R": Predicting a Test Set (Gasoline)

> data(gasoline)> #60 spectra of gasoline (octane is the constituent) > #We divide the whole Set into a Train Set and a Test Set.> gasTrain<-gasoline> gasTest<-gasoline> #Let´s develop the PLSR with the Tain Set ...

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