[R] the 'copula' package

[Casey Quinn]

Is anybody using the Copula package in R? The particular problem I'm 
facing is that R is not acknowledging the fitCopula command/function 
when I load the package and (try to) run something very simple:

fit1 <- fitCopula(x1 = list(u11,u12,u13,u14,u15,u16,u17,u18), tCopula, 
optim.control = list(NULL), method = "BFGS")

Anybody also using it, successfully or unsuccessfully? I'd appreciate a 
tip or two.

Casey Quinn
Centre for Health Economics
University of York
York YO10 5DD
England

Phone: +44 01904 32 1411
Fax:    +44 01904 32 1402
Email:   cq1 at york.ac.uk
Web:   http://www.york.ac.uk/inst/che/staff/quinn.htm