1507 search results for "Regression"

Additive modelling and the HadCRUT3v global mean temperature series

June 12, 2011
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Additive modelling and the HadCRUT3v global mean temperature series

Earlier, I looked at the HadCRUT3vgl data set using generalized least squares to investigate whether the trend in temperature since 1995 was statistically significant. Here I want to follow-up one of the points from the earlier posting; namely using a … Continue reading →

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Additive modelling and the HadCRUT3v global mean temperature series

June 12, 2011
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Additive modelling and the HadCRUT3v global mean temperature series

Earlier, I looked at the HadCRUT3vgl data set using generalized least squares to investigate whether the trend in temperature since 1995 was statistically significant. Here I want to follow-up one of the points from the earlier posting; namely using a statistical technique that fits a local, and not global, model to the...

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Global warming since 1995 ‘now significant’

June 11, 2011
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Global warming since 1995 ‘now significant’

Yesterday (June 11, 2011) the BBC reported on comments by Prof. Phil Jones, of the Climatic Research Unit (CRU), University of East Anglia (UEA), that the warming experienced by the planet since 1995 was statistically significant. That the trend in … Continue reading →

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Global warming since 1995 ‘now significant’

June 11, 2011
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Global warming since 1995 ‘now significant’

Yesterday (June 11, 2011) the BBC reported on comments by Prof. Phil Jones, of the Climatic Research Unit (CRU), University of East Anglia (UEA), that the warming experienced by the planet since 1995 was statistically significant....

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What is ordisurf() doing…?

June 10, 2011
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What is ordisurf() doing…?

I’m writing this post for two reasons: i) someone searched on Google for the term “what is ordisurf doing” and ended up on my blog, and ii) because I have been on the receiving end of reviewers comments on a … Continue reading →

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What is ordisurf() doing…?

June 10, 2011
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What is ordisurf() doing…?

I’m writing this post for two reasons: i) someone searched on Google for the term ‘what is ordisurf doing’ and ended up on my blog, and ii) because I have been on the receiving end of reviewers comments on a paper I co-authored where they didn’t know what ordisurf() was doing either! It is hardly surprising that people who...

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How to fit power laws

June 7, 2011
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How to fit power laws

A new paper out in Ecology by Xiao and colleagues (in press, here) compares the use of log-transformation to non-linear regression for analyzing power-laws.They suggest that the error distribution should determine which method performs better. When you...

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another look at CRAN Task Views

May 26, 2011
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another look at CRAN Task Views

We've been impressed with how helpful the CRAN Task Views are in guiding us in R as we wend our way through the huge number of add-on packages (3021 as of May, 2011). These are web pages that are maintained by volunteers with expertise in a specified ...

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BMS and the Fixed Effects Estimator – A Tutorial

This tutorial illustrates how to use Bayesian Model Averaging (BMA) with panel data using the R package BMS.Contents Introduction Fixed Effects Estimation by Demeaning the Data Fixed Effects Estimation with Dummy Variables Bibliography Downloads A ...

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RcppArmadillo 0.2.20

Conrad Sanderson is preparing version 2.0.0 of his Armadillo templated C++ library for linear algebra and has released a first public beta version 1.99.2. This has been folded into a new release of the RcppArmadillo wrapper for R based on our Rcpp li...

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