This is D's Typepad Profile.
Join Typepad and start following D's activity
Join Now!
Already a member? Sign In
D
Recent Activity
Sorry, that last post got mangled. The URL for my paper is http://www.amstat.org/meetings/jsm/2015/onlineprogram/AbstractDetails.cfm?abstractid=316343
Hi, Bryan, Norm Matloff here. I must respectfully disagree with your post. One should never rely on correlations in small data sets (or tiny ones, as you call your example). Second-order moments are a lot harder to estimate than first-order ones, e.g. the variance of a sample variance is large. The Available Cases method for dealing with missing values, as exemplified in the pairwise.complete.obs option you cite, is a lot more useful than many people realize. It does tacitly make strong assumptions, but so do all of the missing-value methods, including in Amelia. on this topic at the JSM in August, and will release an R package in the next couple of weeks.
D is now following The Typepad Team
Jun 16, 2015