[R] Bifurcating Autoregression

2009-10-06 Thread Shawn Garbett
Is there any R package that implements a bifurcating autoregression, aka the BAR(n) model? I've been reading the Huggins and Staudte paper, "Variance Components Models for Dependent Cell Populations", from the Journal of the American Statistical Association, 1994.

[R] Vector of Vectors

2009-04-01 Thread Shawn Garbett
t; v [,1] [,2] attr(,"row.names") integer(0) > v[1] [1] NA > As you can see, vectors aren't very cooperative and lists are downright baffling to me. Shawn Garbett Vanderbilt Cancer Biology 220 Pierce Ave, PRB 715AA Nashville, TN 37232 Office: 615.936.1975 Cell: 615.397.8