Tag Archives: mm05

t-Statistics and the “Hockey Stick Index”

Sep 28, 2014 – 1:30 PM

In MM05,  we quantified the “hockeystick-ness” of a series as the difference between the 1902-1980 mean (the “short centering” period of Mannian principal components) and the overall mean (1400-1980), divided by the standard deviation – a measure that we termed its “Hockey Stick Index (HSI)”.  The histograms of its distribution for 10,000 simulated networks (shown in […]

By Stephen McIntyre | Posted in Uncategorized | Also tagged , , , | Comments (196)

What Nick Stokes Wouldn’t Show You

Sep 27, 2014 – 4:38 PM

In MM05, we quantified the hockeystick-ness of simulated PC1s as the difference between the 1902-1980 mean (the “short centering” period of Mannian principal components) and the overall mean (1400-1980), divided by the standard deviation – a measure that we termed its “Hockey Stick Index (HSI)”.  In MM05 Figure 2, we showed histograms of the HSI […]

By Stephen McIntyre | Posted in Uncategorized | Also tagged , , | Comments (58)

The Team Defends Paleo-Phrenology

Jul 25, 2010 – 2:32 PM

Hansen’s twin pit bulls, Tamino and Gavin, have launched into a spirited defence of Mannian paleo-phrenology at realclimate here, with a counter-discussion at Bishop Hill here.

By Stephen McIntyre | Posted in Uncategorized | Also tagged , , , , | Comments (266)