168 search results for "iris"

R on Your iPhone (Not the Way You Think)

August 8, 2013
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R on Your iPhone (Not the Way You Think)

If you really love R, you should put it on your iPhone.  Apple gives the measurements for its products here. Let's use a little grid magic with ggplot2 to make a chart for the back of your iphone similar to this. require(grid)require(ggplot2)# thanks for the Apple measurements# https://developer.apple.com/resources/cases/x11( height = as.numeric(convertX(unit(58.55, "mm"), "in")),...

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ggplot2 meet d3

August 7, 2013
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With great libraries, just a couple lines of code can do amazing things.  For instance, let’s limit ourselves to less than 10 lines of code and see what ggplot2 and d3 can do.  We will use gridSVG as discussed in yesterday’s post I Want ggplot2/lattice and d3 (gridSVG–The Glue) to expose ggplot2 to d3.  Thanks

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R talks to Weka about Data Mining

July 14, 2013
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R talks to Weka about Data Mining

R provides us with excellent resources to mine data, and there are some good overviews out there: Yanchang’s website with Examples and a nice reference card The rattle-package that introduces a nice GUI for R, and Graham William’s compendium of tools The caret-package that offers a unified interface to running a multitude of model builders.

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Analyse discriminante linéaire ou Regression logistique

July 10, 2013
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Analyse discriminante linéaire ou Regression logistique

Supposons que l'on dispose d'iris de Paris (en population >100khabts) et qu'on veuille pouvoir les classer selon leurs caractéristiques sociodémos : Population taux de chômage Etudiants CSP etc... Une fois, les iris classés, on se demande si l'on peut transporter cette typologie à une autre grande ville (Lyon) par exemple : Il faudrait alors pouvoir utiliser un modèle d'affectation des iris selon leurs caractéristiques respectives...

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Interactive Heatmaps (and Dendrograms) – A Shiny App

July 7, 2013
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Interactive Heatmaps (and Dendrograms) – A Shiny App

Heatmaps are a great way to visualize data matrices. Heatmap color and organization can be used to  encode information about the data and metadata to help learn about the data at hand. An example of this could be looking at the raw data  or hierarchically clustering samples and variables based on their similarity or differences.

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Put some cushions on the sofa

June 21, 2013
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I posted earlier this week about sofa (here), introducing a package I started recently that interacts with CouchDB from R. There's been a fair amount of response at least in terms of page views, so I'll take that as a sign to keep going. One thing that would be nice while you are CouchDB-ing is to interact with local...

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Put some cushions on the sofa

June 21, 2013
By

I posted earlier this week about sofa (here), introducing a package I started recently that interacts with CouchDB from R. There's been a fair amount of response at least in terms of page views, so I'll take that as a sign to keep going. One thing that would be nice while you are CouchDB-ing is to interact with local...

Read more »

Safe Loading of RData Files

June 10, 2013
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Safe Loading of RData Files

Unless you have configured R not to ask, every time you close R or RStudio you are prompted to save your workspace. This saves an RData file to the working directory. The functions save.image() and save() offer a little more … Continue reading →

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Fylopic, an R wrapper to Phylopic

June 1, 2013
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Fylopic, an R wrapper to Phylopic

What is PhyloPic? PhyloPic is an awesome new service - I'll let the creator, Mike Keesey, explain what it is (paraphrasing here): PhyloPic stores silhouette images of organisms, and each image is associated with taxonomic names, and stores the taxonomy of all taxa, allowing searching by taxonomic names. Anyone can submit silhouettes to PhyloPic. What is a silhouette? It's like...

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Fylopic, an R wrapper to Phylopic

June 1, 2013
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Fylopic, an R wrapper to Phylopic

What is PhyloPic? PhyloPic is an awesome new service - I'll let the creator, Mike Keesey, explain what it is (paraphrasing here): PhyloPic stores silhouette images of organisms, and each image is associated with taxonomic names, and stores the taxonomy of all taxa, allowing searching by taxonomic names. Anyone can submit silhouettes to PhyloPic. What is a silhouette? It's like...

Read more »