Category Archives: Statistics

Tom Swift and His Electric Factor Analysis Machine

Feb 24, 2005 – 11:08 PM

This is an interesting and amusing comment on factor analysis, a technique very closely related to principal component analysis: J. Scott Armstrong, Derivation of Theory by Means of Factor Analysis or Tom Swift and His Electric Factor Analysis Machine, The American Statistician, 1967, 17-21 Link

By Stephen McIntyre | Also posted in Multivariate | Comments (3)

Cook et al. [2004]

Feb 4, 2005 – 6:25 PM

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.

By Stephen McIntyre | Also posted in MBH98 | Tagged , , , | Comments (13)