1415 search results for "regression"

All together now – Confirmatory Factor Analysis in R

December 8, 2010
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Describing multivariate data is not easy. Especially, if you think that statisticians have not developed any new tools after the ANOVA and principal component analysis (PCA). For social and experimental scientists the most important new technique are structural equation models that combine measurement models (that substitute reliability analysis and PCA) and structural models (that substitute

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Interesting Posts at Rational Past Time Related to My Previous Strike Zone Map Post

December 8, 2010
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Interesting Posts at Rational Past Time Related to My Previous Strike Zone Map Post

J-Doug at Rational Pastime has some cool posts looking at umpire strike zones at his site (and cross-posted at Beyond the Boxscore). I was curious about this issue as well with some work I've been doing here in the office (which I'll refrain from talk...

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Bayesian model selection

December 7, 2010
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Bayesian model selection

Last week, I received a box of books from the International Statistical Review, for reviewing them. I thus grabbed the one whose title was most appealing to me, namely Bayesian Model Selection and Statistical Modeling by Tomohiro Ando. I am indeed interested in both the nature of testing hypotheses or more accurately of assessing models,

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Electoral Marimekko Plots

December 6, 2010
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Electoral Marimekko Plots

To be reductive, visual displays of quantitative information might be reasonably categorized on a continuum between “data display” and “statistical graphics.” By statistical graphics, I mean a plot that displays some summary of or relationship amongst several variables, likely having undergone some processing or analysis. This may be as simple as a scatterplot of a … Read more

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Forecasting workshop: Switzerland, June 2011

December 6, 2010
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Forecasting workshop: Switzerland, June 2011

I will be running a workshop on Statistical Forecasting: Principles and Practice in Switzerland, 20-22 June 2011. Check out the venue: Waldhotel Doldenhorn, Kandersteg! So if you fancy a trip to the beautiful Swiss Alps next June, read on… Outline Forecasting is required in many situations: deciding whether to build another power generation plant in

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Rethinking ‘loess’ for Binomial-Response Pitch F/X Strike Zone Maps

December 5, 2010
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Rethinking ‘loess’ for Binomial-Response Pitch F/X Strike Zone Maps

So after a long hiatus, I'm back for today. I've been crazy busy with a number of different things--including getting engaged and helping plan out wedding dates and things of that sort--and unfortunately have not kept up here on this blog (or on Fanta...

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Another boring blog

December 2, 2010
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Another boring blog

I recently decided to create two blogs as outlets for my research.  The first (The Richness of Life) focuses more on the organisms I work with as an ecologist and my general interest as a student of natural history.  This blog on Quantitative...

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Statistique de l’assurance STT6705V, partie 12

December 2, 2010
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Statistique de l’assurance STT6705V, partie 12

The final course (since courses end this week in Montréal) can be watched here and there. The drawings from the course can be downloaded here (including last week's). First, to come back on last week's course , we considered Lee-carter model, i.e....

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Recent developments in the drug war

December 1, 2010
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Recent developments in the drug war

The Mexican government recently released data on all crime statistics from January 1997 to October 2010, as reported by the various police forces operating in Mexico. This information provides an unprecedented look at what has happened since the drug war began and allows for a frank assessment of the deterioration of security in Mexico.

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Recent developments in the drug war

December 1, 2010
By
Recent developments in the drug war

The Mexican government recently released data on all crime statistics from January 1997 to October 2010, as reported by the various police forces operating in Mexico. This information provides an unprecedented look at what has happened since the drug war began and allows for a frank assessment of the deterioration of security in Mexico.

Read more »