Tag Archives: lmer

New Light on Gulf of Alaska

Feb 14, 2016 – 2:46 PM

Last week, I posted on the effect of ex post site selection on the Gulf of Alaska tree ring chronology used in Wilson et al 2016 (from Wiles et al 2014).  An earlier incarnation of this chronology (in D’Arrigo et al 2016) had had a severe divergence problem, a problem that Wiles et al had purported to […]

By Stephen McIntyre | Posted in Uncategorized | Also tagged , , , | Comments (9)

A Return to Polar Urals: Wilson et al 2016

Feb 8, 2016 – 11:49 AM

Wilson et al 2016, like D’Arrigo et al 2006, includes a ‘Polar Urals’ chronology as one of its components.  Tree ring chronologies from Polar Urals and Yamal have long been a contentious issue at Climate Audit, dating back to the earliest days (see tags Yamal, Polar Urals). Whereas the D’Arrigo et al 2006 version had one […]

By Stephen McIntyre | Posted in Uncategorized | Also tagged , , , , , , | Comments (17)

Tree Ring Standardization – A Linear Mixed Effects Perspective

Nov 24, 2007 – 7:11 PM

I’ve already received my first condescending comments from the dendro world about the mysteries of standardization. Just to pre-empt some further pontification presuming that I know nothing about these mysteries, I’m posting up some notes that I wrote in 2004 on standardization – which was what I would have been working on had people just […]

By Stephen McIntyre | Posted in General | Also tagged , , , , | Comments (1)