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Rafa Llopis

100 Mensajes más leídos de R - 0 views

www.r-statistics.com/...nipulation-and-other-languages

recopilación 100 R blogs 2012

shared by Rafa Llopis on 29 Apr 13 - No Cached
  • Top 100 R posts of 2012
    • Rafa Llopis
      Rafa Llopis on 29 Apr 13
       
      Es una lista con los 100 post más visitados del 2012 sobre lenguaje R, con datos muy interesantes sobre el tema y aportaciones con ejemplos programados.
  • R-statistics blog
  • around 245 active R bloggers 
  • ...9 more annotations...
  • these bloggers wrote around 3200 posts about R
  •  list of the top visited posts 
  • programming environment
  • (unofficial) online journal of the R statistical
  • contribute their R article
  • .  Bellow you can see a few figures comparing the statistics of 2012
  • Reproducible R blogging – make it to blog from R to WordPress and blogger (via knitr, RStudio, etc.)
  • Creating online interactive visualization using R
  • More guest posts on R-bloggers
Pablo David

R-statistics blog - 0 views

www.r-statistics.com/r

Empresa Práctica 5 Lenguaje R

shared by Pablo David on 29 Apr 13 - No Cached
  • This particular example would be really easy were we able to use RStudio’s manipulate package. That is only for RStudio users though. Well, not really. There is a simple map available in the gWidgetsWWW2.rapache package that allows us to easily use that specification
    • Pablo David
      Pablo David on 29 Apr 13
       
      Se ha inventado una novedosa y muy práctica aplicación para crear páginas web a partir del lenguaje R
  • Pablo David on 29 Apr 13
     
    Hace unos días el blog RStudio anunció Shiny, un nuevo producto para crear fácilmente aplicaciones web interactivas. El API gWidgets tiene el mismo objetivo de hacer que sea fácil para los usuarios de R para crear aplicaciones interactivas.
Juanjo Cristian

Bringing R Programming into the Enterprise | Blogs | ITBusinessEdge.com - 1 views

www.itbusinessedge.com/...rogramming-into-the-enterprise

shared by Juanjo Cristian on 30 Apr 13 - No Cached
    • Antonio Legaz
      Antonio Legaz on 30 Apr 13
       
      El lenguaje R representa una alternativa gratuita a otros lenguajes como SAS o SPSS cuyo coste no puede ser afrontado por algunas empresas.
    • Juanjo Cristian
      Juanjo Cristian on 01 May 13
       
      Cada vez más empresas están incorporando R en el análisis de datos, en vez de otros entornos de programación estadística como SAS o SPSS. Como parte de un esfuerzo para incrementar este uso en empresas, se ha añadido un soporte de fuentes de "grandes datos" y se espera añadir interfaz gráfica de usuario para hacerlo más accesible
LuCla EdPa

R integrated throughout the enterprise analytics stack - 0 views

blog.revolutionanalytics.com/...r-in-the-enterprise.html

shared by LuCla EdPa on 29 Apr 13 - No Cached
  • and as new graduates trained in R have migrated to the workplace the demand for R in corporations has become more and more intense. 
    • LuCla EdPa
      LuCla EdPa on 29 Apr 13
       
      R ha crecido mucho en el ámbito de la empresa
  • Let's take a look at some of the applications within the analytics stack which now provide integration with R. 
    • LuCla EdPa
      LuCla EdPa on 29 Apr 13
       
      Pasamos a ver algunas empresas que usan R
  • Oracle announced last year a forthcoming connection between R and Oracle
    • LuCla EdPa
      LuCla EdPa on 29 Apr 13
       
      Oracle, creadora de Java entre otros, hará posible la conexión entre los dos lenguajes
  • ...1 more annotation...
  • As you can see, for organizations who need to create advanced analytics applications, R is integrated throughout the analytics stack: for data access, for presentation of results, and of course for the statistical analysis process itself. This degree of integration by so many companies is indicative of the level of demand for R throughout the enterprise. As the leading provider of commercial software and support for R, Revolution Analytics supports R users througout the organization,
    • LuCla EdPa
      LuCla EdPa on 29 Apr 13
       
      R está integrado en múltiples empresas y la demanda de su uso está aumentando conforme pasa el tiempo
Rafa Llopis

R You Ready for R?(2/2) - 0 views

bits.blogs.nytimes.com/...r-you-ready-for-r

lenguaje R publicacion blog new york times

shared by Rafa Llopis on 29 Apr 13 - No Cached
  • R You Ready for R?
    • Rafa Llopis
      Rafa Llopis on 29 Apr 13
       
      Artículo del New York Times sobre la influencia del lenguaje R.
  • R helps people deal with large volumes of data in a wide variety of industries
  • the software is open source, meaning people can pick it up for free and make their own changes to the code
  • ...10 more annotations...
  • People chimed in with the unique ways they’re using the technology
  • talked about its passion
  • Vhayu Technologies
  • R to help traders on Wall Street
  • for tweaking
  • Speaking of R, Mr. Chambers said, “It’s way beyond anything we could have imagined at Bell Labs.”
  • Were Pfizer to use R in clinical studies
  • “It’s very hard to displace the industry standard in those types of cases,” said Max Kuhn, associate director of nonclinical statistics at Pfizer.
  • Revolution offers ways to speed up the software on certain applications and to run it on large computers
  • Revolution provides support services to customers like Pfizer and Bank of America
Carlos Espinosa

5 Manuales para aprender R | R blogs / lang - 0 views

www.r-bloggers.com/...305

shared by Carlos Espinosa on 17 Apr 13 - No Cached
    • Carlos Espinosa
      Carlos Espinosa on 17 Apr 13
       
      5 manuales para aprender R.
practica5 empresas

What is Open Source R - 0 views

www.revolutionanalytics.com/what-is-open-source-r

shared by practica5 empresas on 17 Apr 13 - No Cached
    • Javier Soriano
      Javier Soriano on 17 Apr 13
       
      R es un lenguaje de programación diseñado expresamente para el análisis de datos. R hace que sea fácil extraer conclusiones a partir de datos multidimensionales con tablas de paneles múltiples, superficies 3-D, etc.
    • Javier Soriano
      Javier Soriano on 17 Apr 13
       
      R es utilizado en el campo de la ciencia y de las finanzas. Dentro del campo de la ciencia lo podemos encontrar en Análisis de imágenes médicas, estadísticas generales,..., entre otras. Por el contrario, en finanzas, lo encontramos en econometría, análisis financieros, etc.
  • Create beautiful and unique data visualizations Representing complex data with charts and graphs is an essential part of the data analysis process, and R goes far beyond the traditional bar chart and line plot. Heavily influenced by thought leaders in data visualization like Bill Cleveland and Edward Tufte, R makes it easy to draw meaning from multidimensional data with multi-panel charts, 3-D surfaces and more. The custom charting capabilities of R are featured in many of the stunning infographics seen in the New York Times, The Economist, and the FlowingData blog.
  • ...2 more annotations...
    • practica5 empresas
      practica5 empresas on 29 Apr 13
       
      Esta pagina remarca que R es un software libre que se emplea en compilaciones matematicas para analizar ficheros.
  • Draw on the talents of data scientists worldwide As a thriving open-source project, R is supported by a community of more than 2 million users and thousands of developers worldwide. Whether you’re using R to optimize portfolios, analyze genomic sequences, or to predict component failure times, experts in every domain have made resources, applications and code available for free, online.
juan trinidad jimenez armesto

Master en Dirección de Empresas Industriales y Tecnológicas, Madrid » ESTADIS... - 1 views

www.eoi.es/...estadistica-con-r

shared by juan trinidad jimenez armesto on 17 Apr 13 - No Cached
    • juan trinidad jimenez armesto
      juan trinidad jimenez armesto on 17 Apr 13
       
      Origen, crecimiento y uso del lenguaje R.
    • Joan Bono
      Joan Bono on 23 Apr 13
       
      En esta pagina ademas de explicar para que se utiliza y un poco la historia del lenguaje R te explica las ventajas que este leguaje te ofrece
  • ‘R’ ofrece varias ventajas:
  • ...12 more annotations...
  • Es muy flexible
  • Sus posibilidades gráficas son  excelentes
  • para poder familiarizarnos con la estadística y apreciar su potencia, es necesario disponer de una herramienta que nos permita usarla con soltura, y aquí es donde ‘R’
  • Fue desarrollado inicialmente por Robert Gentlemann y Ross Ihaka
  • ‘R’ es un lenguaje de programación con un conjunto de procedimientos implementados que permiten realizar tareas específicas muy diversas
  • que van desde la aplicación de funciones estadísticas a la generación de gráficos de altas prestaciones, pasando por la resolución de ecuaciones diferenciales
    • Fran Marijuana
      Fran Marijuana on 24 Apr 13
       
      R tiene mas usos aparte del que fue diseñado
  • ‘R’ es un proyecto de software libre, resultado de la implementación GNU del lenguaje S. Fue desarrollado inicialmente por Robert Gentlemann y Ross Ihaka, del Departamento de Estadística de la Universidad de Auckland en 1993. Su desarrollo en la actualidad es responsabilidad del R Development Core Team.
  • Sus posibilidades gráficas son  excelentes.
  • en la actualidad se utiliza para infinidad de  áreas no relacionadas con la estadística, como análisis matemático  (cálculo y álgebra), física, química, simulación, etc.
  • ‘R’ comenzó siendo una  herramienta estadística
  • Podemos además programar  nuestros propios procedimientos y aplicaciones.
Alexis Agustín

See how Deloitte uses R for actuarial analysis - 0 views

blog.revolutionanalytics.com/...-r-for-actuarial-analysis.html

Deloitte Analisis de datos Regression Poisson extrapolacion

shared by Alexis Agustín on 25 Apr 13 - No Cached
    • Alexis Agustín
      Alexis Agustín on 25 Apr 13
       
      Aqui un consultor de Deloitte nos muestra como usa R para explorar datos y ajustarlos en distribuciones, calculando proyecciones usando la regresion de Poisson. Ademas lo contrapone a Excel, concluyendo que no hay una hoja de calculo en la que confundir columnas, si no que en lineas de codigo simple que se puede copiar se puede trabajar mas facilmente con grandes cantidades de datos
  • Jim Guszcza (Predictive Analytics lead at Deloitte Consulting and Assistant Professor at UW-Madison) who gave a great webinar presentation yesterday
  • R is used for exploratory data analysis and modeling, with a live examples of fitting a mixute distribution to bimodal claims data, and calculating loss reserves using Poisson regression.
  • ...2 more annotations...
  • Just one simple line of [R] code that would work just as well for a 100-by-100 loss triangle as it would for a 10-by-10 triangle. No hidden cells in the spreadsheet, no risk of spreadsheet error. It's a little bit of code you could look at in one screen, it's replicable ... and this does all the work that a spreadsheet would do. 
  • He uses the Allstate Claim Prediction Challenge data (from a recent Kaggle competition) to fit a Tweedie model to 13 million records of claim data. (The Tweedie distribution is often used to model insurance claims, where many claims are exactly zero, and non-zero claims follow a continuous Gamma-like distribution.) Using the forthcoming rxGLM function, he fit the model to this large data set in just over two minutes (140.22 seconds) using a single quad-core PC.
grupo empresa

Rise of Open and Free R Language : Target  Health  Global - 0 views

blog.targethealth.com/?p=3225

rise free language programming R

shared by grupo empresa on 24 Apr 13 - No Cached
    • grupo empresa
      grupo empresa on 24 Apr 13
       
      R desde 2011 esta creciendo a un ritmo muy rápido, sobrepasando los principales lenguajes como MATLAB o SAS, esto es importante ya que R es un leguaje freeware. Una de las razones de su crecimiento es que tiene características únicas como la computación en paralelo, que permite juntar los recursos de varias CPU's sin tener que limitarse a las velocidades de reloj impuestas por los factores tecnológicos.
  • Started as an open source programming language for data analysis, its popularity and use is spreading to major companies as diverse as Pfizer, Merck, Google, Shell, and Bank of America.
  • R programming language offers something that most of current languages do not support well, parallelism. With a package named “SNOW”, R can take advantage of multiple cores in the CPU. Due to the limitation in increasing CPU’s clock speed, Intel and AMD are stuffing more cores into the processors. There aren’t many software in the market that can take advantage of this, but R is.
grupo empresa

R-statistics blog - 0 views

www.r-statistics.com

shared by grupo empresa on 24 Apr 13 - Cached
viinjo A1c

The Power of R: More Companies Using Language for Business Analytics | Interviews | ITB... - 0 views

www.itbusinessedge.com/...anguage-for-business-analytics

shared by viinjo A1c on 29 Apr 13 - No Cached
    • diigo lemon
      diigo lemon on 29 Apr 13
       
      En esta entrevista al director de operaciones de Revolution Analytics, Jeff Edhardt, se explica brevemente lo que es el lenguaje R, un lenguaje de programación estadístico de código abierto, usado para analizar cualquier tipo de dato. Remarca el hecho de que se está extendiendo cada vez más ya que las compañías que utilizan alguna herramienta de análisis de datos están obteniendo un mayor rendimiento en la empresa. Jeff Edhardt finaliza explicando el amplio rango de aplicaciones que se le pueden extraer a este lenguaje.
  • It's incredibly diverse. It ranges from pharmaceuticals for drug developments, biostatistics, gene analysis, genetic analysis into finance. It's very heavily used in hedge funds, quantitative finance risk, credit analysis, fraud detection, understanding customer churn, understanding customer behavior, pricing optimization forecasting. We have customers who are entertainment or gaming companies using it to understand buying patterns and effectiveness of different media campaigns. So it ranges anywhere from life sciences to finance to Internet to telecom.
    • viinjo A1c
      viinjo A1c on 30 Apr 13
       
      Usos de R en el ámbito empresarial según el COO de Revolution Analytics.
  • viinjo A1c on 30 Apr 13
     
    The Power of R: More Companies Using Language for Business Analytics - Parte 1
Alpha Teleco

Comparison of data analysis packages: R, Matlab, SciPy, Excel, SAS, SPSS, Stata | AI an... - 2 views

brenocon.com/...lab-scipy-excel-sas-spss-stata

shared by Alpha Teleco on 29 Apr 13 - No Cached
  • R Library support; visualization Steep learning curve Yes Finance; Statistics
  • Matlab Elegant matrix support; visualization Expensive; incomplete statistics support No Engineering
  • Alpha Teleco on 29 Apr 13
     
    En esta página web podemos observar una tabla comparativa entre las herramientas de analisis de datos más importantes
viinjo A1c

The Power of R: More Companies Using Language for Business Analytics - Page 2 | Intervi... - 0 views

www.itbusinessedge.com/...anguage-for-business-analytics

shared by viinjo A1c on 30 Apr 13 - No Cached
  • Part of what we are doing is helping to consumerize or democratize analytics. Because we can provide this software so much more cost effectively, it's giving opportunities for individuals, startups, small and medium businesses to come in and have equal analytic capability and processing power both from a software standpoint, but also from the more cost-effective hardware that we're able to run on to give them the same tools that these giant organizations do. So now all of a sudden we've started to level the playing field a little bit.
    • viinjo A1c
      viinjo A1c on 30 Apr 13
       
      R no únicamente es para las grandes empresas, también para las pymes y las nuevas empresas.
  • viinjo A1c on 30 Apr 13
     
    The Power of R: More Companies Using Language for Business Analytics - Parte 2
Antoino Martinez Vila

Comparing R to smoking | The Endeavour - 0 views

www.johndcook.com/...comparing-r-to-smoking

shared by Antoino Martinez Vila on 30 Apr 13 - No Cached
    • Antoino Martinez Vila
      Antoino Martinez Vila on 30 Apr 13
       
      En este articulo nos esta comparando el lenguaje R a fumar, al principio es difícil programar en R, pasa igual en el tabaco al principio es difícil saber fumar pero una vez sabes fumar quieres mas y mas y mas... en el lenguaje R una vez sabes programar cada vez querras programar mas y mas y mas... 
Rafa Llopis

R You Ready for R? (1/2) - 0 views

www.nytimes.com/...07program.html

lenguaje R publicacion blog new york times

shared by Rafa Llopis on 29 Apr 13 - Cached
  • Data Analysts Captivated by R’s Power
    • Rafa Llopis
      Rafa Llopis on 29 Apr 13
       
      Artículo del New York Times que explica desde el principio las bases del lenguaje R y en qué se emplea.
  • used to set ad prices, find new drugs more quickly or fine-tune financial models
  • Google, Pfizer, Merck, Bank of America, the InterContinental Hotels Group and Shell use it.
  • ...17 more annotations...
  • R is also the name of a popular programming language used by a growing number of data analysts inside corporations and academia.
  • R is really important to the point that it’s hard to overvalue it,” said Daryl Pregibon
  • “It allows statisticians to do very intricate and complicated analyses without knowing the blood and guts of computing systems.”
  • R is similar to other programming languages, like C, Java and Perl
  • . I.B.M., Hewlett-Packard and Dell make billions of dollars a year selling servers that run the open-source Linux operating system
  • Web sites are displayed using an open-source application called Apache,
  • the end results of all this technology via the Firefox Web
  • can help illuminate data trends more clearly than is possible by entering information into rows and columns
  • What makes R so useful
  • is that statisticians, engineers and scientists can improve the software’s code or write variations for specific tasks
  • advanced algorithms, colored and textured graphs and mining techniques to dig deeper into databases.
  • Packages written for R add
  • the professors considered their coding efforts more of an academic game than anything else.
  • the notion of devising something like R sprang up during a hallway conversation.
  • They both wanted technology better suited for their statistics students
  • R immediately gained a following with people who saw the possibilities in customizing the free software.
  • “The diversity and excitement around what all of these people are doing is great,” Mr. Chambers said.
LuCla EdPa

What is R? (Oracle R Enterprise) - 0 views

blogs.oracle.com/...what_is_r

shared by LuCla EdPa on 29 Apr 13 - No Cached
  • R has been receiving a lot of attention recently, although it’s been around for over 15 years. R is an open-source language and environment for statistical computing and data visualization, supporting data manipulation and transformations, as well as sophisticated graphical displays
    • LuCla EdPa
      LuCla EdPa on 29 Apr 13
       
      R es un lenguaje de código abierto, que admite ser manipulado por la comunidad
  • Corporate data analysts and statisticians often know R and use it in their daily work, either writing their own R functionality,
    • LuCla EdPa
      LuCla EdPa on 29 Apr 13
       
      Es usado por corporaciones y empresas
  • It’s a powerful, extensible environment, and as noted above, it has a wide range of statistics and data visualization capabilities. It’s easy to install and use, and it’s free
  • ...4 more annotations...
  • n contrast, statisticians and data analysts typically don’t know SQL and are not familiar with database tasks. R provides statisticians and data analysts access a wide range of analytical capabilities in a natural statistical language
  • However, there is another issue that limits R’s scalability…
  • R is limited by the memory and processing power of the machine where it runs
  • this chews up memory faster.
    • LuCla EdPa
      LuCla EdPa on 29 Apr 13
       
      Pese a ser un potente programa, parece ser que no administra demasiado bien los recursos
Yes We Pass

How the New York Times uses R for Data Visualization - 0 views

blog.revolutionanalytics.com/...-r-for-data-visualization.html

shared by Yes We Pass on 09 May 13 - No Cached
    • Yes We Pass
      Yes We Pass on 09 May 13
       
      En esta página se muestra cómo el New York Times utiliza el lenguaje R para realizar gráficos que posteriormente aparecerán en sus ediciones impresas y online. también señala que han sido pioneros en el uso de esta herramienta. 
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