1700 search results for "tutorial"

rOpenSci at NESCent Open Tree of Life Hackathon

August 15, 2014
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The Open Tree of Life project aims to synthesize our combined knowledge of how organisms relate to each other, and make the results available to anyone who wants to use them. At present, the project contains data from more than 4,000 published phylogenies, which combine with other data sources to make a tree that covers 2.5...

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Bangalore workshop [ಬೆಂಗಳೂರು ಕಾರ್ಯಾಗಾರ] and new book

August 12, 2014
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Bangalore workshop [ಬೆಂಗಳೂರು ಕಾರ್ಯಾಗಾರ] and new book

On the last day of the IFCAM workshop in Bangalore, Marc Lavielle from INRIA presented a talk on mixed effects where he illustrated his original computer language Monolix. And mentioned that his CRC Press book on Mixed Effects Models for the Population Approach was out! (Appropriately listed as out on a 14th of July on

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Quantitative Finance applications in R – 8

August 12, 2014
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Quantitative Finance applications in R – 8

The latest in a series by Daniel Hanson Introduction Correlations between holdings in a portfolio are of course a key component in financial risk management. Borrowing a tool common in fields such as bioinformatics and genetics, we will look at how to use heat maps in R for visualizing correlations among financial returns, and examine behavior in both a...

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A Conversation with Hadley Wickham – the useR! 2014 interview

August 11, 2014
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hadley_Untitled

Hadley Wickham is famous. He’s not Kardashian famous, but walking around useR! and seeing the community’s reaction to him, there’s no question, he’s ‘R famous’. If you have the good fortune to see his talks, tutorials, or sessions in person, you owe it to yourself to do so.

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Announcing our ambassadors program

August 11, 2014
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In the last 12 months we traveled all over the world delivering talks and hands on workshops at various conferences and universities. This was a great opportunity for us to raise awareness for the project and get more of you involved as contributors and collaborators. As we scale the project to the next level, we need your help in...

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Ploting SEMs in R using semPlot

August 10, 2014
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Ploting SEMs in R using semPlot

This is a short post presenting the great package semPlot developed by Sacha Epskamp (check out his nice website: http://sachaepskamp.com/) to make nice plots from your SEMs. SEMs are a modelling tool that allow the researcher to investiguate complex relationships between the variables, you may find here many links to free tutorials: http://www.structuralequations.org/. Here I

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2014 UC Davis Proteomics Workshop

August 9, 2014
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2014 UC Davis Proteomics Workshop

Recently I had the pleasure of teaching data analysis at the 2014 UC Davis Proteomics Workshop. This included a hands on lab for making gene ontology enrichment networks. You can check out my lecture and tutorial below or download all the material. Introduction Tutorial 2014 UC Davis Proteomics Workshop Dmitry Grapov is licensed under a

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In case you missed it: July 2014 Roundup

August 6, 2014
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In case you missed them, here are some articles from June of particular interest to R users: The deadline for our contest to visualize the location of R user groups has been extended to August 16. Previews of R-related sessions at this year's JSM conference in Boston. Coding errors in R graphics scripts serendipitously create some interesting art. Another...

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Simpler R coding with pipes > the present and future of the magrittr package

August 5, 2014
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Simpler R coding with pipes > the present and future of the magrittr package

This is a guest post by Stefan Milton, the author of the magrittr package which introduces the %>% operator to R programming. Preface (by Tal Galili) I was first introduced to the %>% (a.k.a: pipe) operator in R, thanks to Hadley Wickham’s (fascinating) dplyr tutorial (link to the workshop’s material) at useR!2014. After several discussions during the conference (including one very

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Plot with ggplot2, interact, collaborate, and share online

July 31, 2014
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Plot with ggplot2, interact, collaborate, and share online

Editor’s note: This is a guest post by Marianne Corvellec from Plotly. This post is based on an interactive Notebook (click to view) she presented at the R User Conference on July 1st, 2014. Plotly is a platform for making, editing, and sharing graphs. If you are used to making plots with ggplot2, you can

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