Tag Archives: r2

Ammann at AGU #2

I’m going to give a fairly brief account of previous attempts to get the residual series and/or cross-validation R2 from Mann, including inquiries to Mann, N.S.F., through Nature, by Climatic Change, by Natuurwetenschap & Techniek and by the House Energy and Commerce Committee. As you will see, no one has been able to get Mann […]

Cook et al. [2004]

What is ironic in Mann’s citation of Cook as authority that paleoclimatologists need not provide a range of verification statistics is that Cook et al. [2004] actually provide a suite of verification statistics, headed by the R2 statistic, which Mann et al. now object to.

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