1723 search results for "time series"

Maximize Your Expectations!

January 30, 2013
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Maximize Your Expectations!

A Problem A major problem in secondary data analysis is that you didn't get to decide what data was collected. Lets say you were interested in how many times a student has read the Twilight books). Specifically, you want to know how effective the ads for...

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F1Stats – Visually Comparing Qualifying and Grid Positions with Race Classification

January 30, 2013
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F1Stats – Visually Comparing Qualifying and Grid Positions with Race Classification

Following the roundabout tour of F1Stats – A Prequel to Getting Started With Rank Correlations, here’s a walk through of my attempt to replicate the first part of A Tale of Two

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Modeling Residential Electricity Usage with R

January 30, 2013
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Modeling Residential Electricity Usage with R

Wow, I can’t believe it has been 11 months since my last blog posting!  The next series of postings will be related to the retail energy field.  Residential power usage is satisfying to model as it can be forecast fairly accurately with the right inputs.  Partly as a consequence of deregulation there is now more data more available than...

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Hilary: the most poisoned baby name in US history

January 29, 2013
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Hilary: the most poisoned baby name in US history

I’ve always had a special fondness for my name, which — according to Ryan Gosling in “Lars and the Real Girl” — is a scientific fact for most people (Ryan Gosling constitutes scientific proof in my book). Plus, the root … Continue reading →

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Strata’s Data Driven Business Day

January 29, 2013
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The tagline for O'Reilly Strata conference series — Making Data Work — has meant that it's always been popular with practitioners, primarily data scientists working with Big Data in real-world environments. Recent Strata events have also attracted more business-oriented attendees, with events focused more on processes and outcomes than on the implementation details. On Tuesday February 26, Strata Santa...

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The components garch model in the rugarch package

January 28, 2013
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The components garch model in the rugarch package

How to fit and use the components model. Previously Related posts are: A practical introduction to garch modeling Variability of garch estimates garch estimation on impossibly long series Variance targeting in garch estimation The model The components model (created by Engle and Lee) generally works better than the more common garch(1,1) model.  Some hints about … Continue reading...

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Lambda.r 1.1.0 released

January 25, 2013
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Lambda.r 1.1.0 released

This is a quick post to announce lambda.r version 1.1.0 is released and available on CRAN.1 This release has a …Continue reading »

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Regressions 101: “Significance”

January 25, 2013
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Regressions 101: “Significance”

SETUP (CAN BE SKIPPED) We start with data (how was it collected?) and the hope that Read more »

local package delays

January 24, 2013
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local package delays

When Jean-Michel and I left Berlin, a month ago, I really thought we were that close to sending the new edition of Bayesian Core. Alas, we are not done yet for a series of reasons: leaving for India did not give me enough time to complete the help manual, some codes from the original version

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Visualizing threaded conversation volume and intensity

January 24, 2013
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Visualizing threaded conversation volume and intensity

As a researcher interested in information flows in digital environments I’m often interested in finding patterns in social trace data. For this discussion we can think of digital social trace data as the text that people post into threaded topics on forums, like on Reddit or a Wiki Talk page on Wikipedia. One way to

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