1636 search results for "Excel"

Twinkle,twinkle little STAR

May 26, 2014
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Twinkle,twinkle little STAR

At the recent R/Finance 2014 conference in Chicago I gave a talk on Smooth Transition AR models and a new package for estimating them called twinkle. In this blog post I will provide a short outline of the models and an introduction to the package and its features. Financial markets have a strong cyclical component

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Using sentiment analysis to predict ratings of popular tv series

May 26, 2014
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Using sentiment analysis to predict ratings of popular tv series

Unless you’ve been living under a rock for the last few years, you have probably heard of TV shows such as Breaking Bad, Mad Men, How I Met Your Mother or Game of Thrones. While I generally don’t spend a whole lot of time watching TV, I have also undergone some pretty intense binge-watching sessions

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Quick History 2: GLMs, R and large data sets

May 22, 2014
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by Joseph Rickert In last week’s post, I sketched out the history of Generalized Linear Models and their implementations. In this post I’ll attempt to outline how GLM functions evolved in R to handle large data sets. The first function to make it possible to build GLM models with datasets that are too big to fit into memory was...

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Conference agenda for EARL conference (September 15th – 17th)

May 21, 2014
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Mango Solutions are pleased to announce details of the full EARL (Effective Applications of the R Language) Conference agenda. EARL will be held at The Tower Hotel in London on September 15th – 17th and will showcase an impressive list of R experts from a wide range of business sectors; for full agenda details listing the speakers and presentations please visit www.earl-conference.com/Agenda.html...

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RcppArmadillo cheatsheet

May 17, 2014
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I have been using RcppArmadillo more and more frequently, so thought I would make a cheatsheet/cookbook type reference that translates common R operations into equivalent arma code.I have put them up on a github wiki page here.The functions are al...

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Can We do Better than R-squared?

May 16, 2014
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Can We do Better than R-squared?

Blog post: R-squared can mislead us. Here are two related statistics for a better assessment of regression models.

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R has some sharp corners

May 15, 2014
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R has some sharp corners

R is definitely our first choice go-to analysis system. In our opinion you really shouldn’t use something else until you have an articulated reason (be it a need for larger data scale, different programming language, better data source integration, or something else). The advantages of R are numerous: Single integrated work environment. Powerful unified scripting/programming Related posts:

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Advanced Regression Analysis: How To Print All Best Models ?

May 13, 2014
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Advanced Regression Analysis: How To Print All Best Models ?

In this post, I am about to explain you simple way to find as many best possible regression models you want, from any given predictors dataset. I am going to show you a method, along with code, where you can … Continue reading →

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Plotly and rOpenSci: Make ggplots shareable and interactive.

May 13, 2014
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Plotly and rOpenSci: Make ggplots shareable and interactive.

By Matt Sundquist Plotly's Co-Founder Here at Plotly, we are on a mission to build a platform where data scientists can analyze data, create beautiful graphs and collaborate: like a GitHub for data, where you can share and find plots, data, and code. The benefits are: Plots (including ggplot2 plots) are interactive and drawn with D3 (try zooming, panning,...

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CFP: AusDM 2014 – the 12th Australasian Data Mining Conference

May 13, 2014
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CFP: AusDM 2014 – the 12th Australasian Data Mining Conference

********************************************************* 12th Australasian Data Mining Conference (AusDM 2014) Brisbane, Australia 27-28 November 2014 http://ausdm14.ausdm.org/ ********************************************************* Data Mining is the art and science of intelligent analysis of (usually big) data sets for meaningful insights. Data mining is actively applied across all … Continue reading →

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