1092 search results for "how to import image file to R"

Using R to find Obama’s most frequent twitter hashtags

November 4, 2013
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Using R to find Obama’s most frequent twitter hashtags

I've been exploring Jeff Gentry's twitteR package, which has a ton of great functionality for intereacting with twitter data in R. Today, I thought a bit about a problem I've noticed several times on twitter: users profiles are often only noisy signals of the content they tweet about! I decided...

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Dream Team – combining Tableau and R

November 3, 2013
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Dream Team – combining Tableau and R

Last quarter was a bit too busy to write some new blog post because of a new job. And changing the job often come along with changing the tools you work with. That was my way to Tableau. Tableau is one of the new stars in the BI/Analytics world and definitely worth a look. The people at Tableau...

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Les k-plus prcoches voisins :Vite, il faut se la réapproprier…

November 2, 2013
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Les k-plus prcoches voisins :Vite, il faut se la réapproprier…

(This article was first published on Learning Data Science , and kindly contributed to R-bloggers) K-plus proches voisins Fondamentaux La notion de voisinage d'un point est assez intuitive. Une définition simple serait : une zone de l'espace qui comprend ce point. C'est une notion centrale en mathématique, particulièrement en analyse lorsqu'on souhaite unifier la notion de finitide (calcul de...

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Quarterback Wonderlic Scores by Institution (Academic) Strength

November 1, 2013
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Quarterback Wonderlic Scores by Institution (Academic) Strength

## geom_smooth: method="auto" and size of largest group is <1000, so using## loess. Use 'method = x' to change the smoothing method. I remember my dad telling me that when he was at Northwestern in the mid-70s, the team...

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Scaling up text processing and Shutting up R: Topic modelling and MALLET

October 29, 2013
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Scaling up text processing and Shutting up R: Topic modelling and MALLET

In this post I show how a combination of MALLET, Python, and data.table means we can analyse quite Big data in R, even though R itself buckles when confronted by textual data.  Topic modelling is great fun. Using topic modelling I have been able to separate articles about the 'Kremlin' as a) a building, b) an international actor c) the...

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School’s out: Building Interactive R Apps with shiny, googleVis in our R Academy

October 24, 2013
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School’s out: Building Interactive R Apps with shiny, googleVis in our R Academy

In our R Academy course “Interactive Datavisualization with R” participants learned today how to build interactive graphics in R using the shiny and the googleVis package. Rstudios shiny package is a great way to build an Application for interactive visualizations out of R. For our example App we recreated Hans Rosslings (Gapminder) Visualization which puts

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Creating an Open Source Revolution in Computational Proteomics

October 24, 2013
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Creating an Open Source Revolution in Computational Proteomics

First of all, I don’t want to discuss in this post about Open-Source, its strengths & strengths. This post is about the most useful Open-Source packages, frameworks or libraries in the field of computational proteomics (a short version of our manuscript “Open source libraries and frameworks for Mass Spectrometry based Proteomics: A developer’s perspective”). 

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The joy of data analysis

October 24, 2013
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The joy of data analysis

Music and snow. Poke my eyes out Perhaps your immediate response is: “I’d rather poke my eyes out with a burning stick than do data analysis.” There’s a completely different reaction from a lot of people who have experienced data analysis. Music It’s not entirely clear why humans like music so much. Part of it The post The...

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My experience of learning R – from basic graphs to performance tuning

October 23, 2013
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My experience of learning R – from basic graphs to performance tuning

BackgroundR as some of you may know is a statistical and graphics programming language (see Wikipedia ) used by academia and recently by IT professionals of our ever growing software industry. There is a sudden demand for Data Scientists, Data Analysts and Statisticians with a background in R among other things data and development related subjects. I have...

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Build your own Twitter Archive and Analyzing Infrastructure with MongoDB, Java and R [Part 1] [Update]

October 22, 2013
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Build your own Twitter Archive and Analyzing Infrastructure with MongoDB, Java and R [Part 1] [Update]

UPDATE: The JAVA script is now also available with the streaming API. You can find the script on my github account Hey everybody, you sure know the problems which appear when you want to work with the Twitter API. Twitter created a lot of different restrictions minimizing the fun of the Data Mining process. Another …

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