On the use of statistics and R

A collection of posts explaining statistics

A quick tutorial in R

An example of misusing statistics

Meta-analysis

Time series decomposition

Compensating for autocorrelation in global temperature data

How to find outliers, high leverage, and influential points in R 

R code for Seasonal Trends graph

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John L. Casey and climate denial

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An anonymous commentator on my post about Tom Luongo raised the issue of John Casey and his views on climate change.  This is a valid challenge, since Luongo apparently got much of his misinformation from Casey.
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One of the persistent denier myths is that the Hockey Stick (usually meaning Mann, M. E., R. S, Bradley, and M. K. Hughes. 1999. Northern Hemispheric Temperatures During the Past Millenium: Inferences, Uncertainties, and Limitations. Geophysical Research Letters . 26:759-762 ) has been discredited.  Not only is that myth false but Mann et al. (1999) has been validated through the publication of numerous hockey stick graphs since 1999.  Here is a brief list of the ones I know: Crowley, T. J. 2000. Causes of Climate Change Over the Past 1000 Years. Science 289:270-277 : Used both his own and Mann et al. (1999)'s hockey sticks to examine the cause of temperature changes over the past 1,000 years.  Found that natural forcings could not explain twentieth century warming without the effect of greenhouse gases. Huang, S, H. N. Pollack, and P. Shen. 2000. Temperature Trends over the past five centuries reconstructed from borehole temperatures. Nature 403:756-758 : Reconstru...
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