# 2891 search results for "MAP"

## Construire un moteur de reco simple avec R (1/2)

September 25, 2013
By

Construire un moteur de rechercheOn va montrer comment on peut construire un moteur de recommandation simple en utilisant les outils de Textmining. Cette construction se fera en deux temps : On construit un moteur de recherche pour identifier par exemple, dans...

## NFL week 3 update

September 25, 2013
By

With another NFL week down we are starting to see separation from the contenders and the “better luck next year” teams.  Any paid TV mouthpiece worth their salt will tell you it is a quarterback driven league.  Driven indeed.  In the last post, I dabbled in the simple code of a correlation heat map.  Now, I realize I may...

September 25, 2013
By

Here is an analysis and some graphics using googleVis on high school graduation rates in the United States. A report from the US Deparment of Education on increasing high school graduation rates was published earlier this year (Jan 2013) and some summary graphics were shown on the Department’s blog (http://www.ed.gov/blog/2013/01/high-school-graduation-rate-at-highest-level-in-three-decades). However, the above blog only shows one static...

## Introducing imagemetrics

September 25, 2013
By

References In my recent projects, I had the opportunity to work with the professor Raphaël Proulx who introduced me to several metrics commonly used in landscape ecology for quantifying image texture. In order to make my life easier, I decided to implement...

September 24, 2013
By

When working with intraday data, analysts are often facing a large dataset problem. R is well equipped to deal with this but the standard approach has to be modified in some ways. Large dataset means different things to different people. I’m talking here about a dataset of less than 10 columns and 2 to 5

## Going to Plot Some Proportions? Why not Flog ’em First?

September 23, 2013
By

Fractions and proportions can be difficult to plot nicely for a number of reasons: If the proportions are based on small counts (e.g., two of his three computing devices were Apple products) then the calculated proportions will only take on a number of discrete values. Depending on what you have measured there might be many proportions close to the...

## Introducing parallelRandomForest: faster, leaner, parallelized

September 23, 2013
By

Together with other members of Andreas Beyer's research group, I participated in the DREAM 8 toxicogenetics challenge. While the jury is still out on the results, I want to introduce my improvement of the R randomForest package, namely parall...

## A few gotchas with R date-time classes

September 21, 2013
By

Date and time handling is essential to many modelling and analysis exercises, in R and other languages used for scientific computing. Over the past few months I tackled the mapping of date-time concepts between R and the .NET framework as part of the w...

## Calling R functions through AJAX using opencpu.js

September 21, 2013
By

The opencpu.js library builds on jQuery to call R functions through AJAX, straight from the browser. This makes it easy to embed R based computation or graphics in apps. Moreover, asynchronous requests (which are native in Javascript) make parallelization a natural part of the application. This post introduces some of...

## Calling R functions through AJAX using opencpu.js

September 21, 2013
By

The opencpu.js library builds on jQuery to call R functions through AJAX, straight from the browser. This makes it easy to embed R based computation or graphics in apps. Moreover, asynchronous requests (which are native in Javascript) make parallelization a natural part of the application. This post introduces some of...