Quitting from lines 120-121 (skating.Rmd)
Error in optim(par = theta.old, fn = fun, gr = grad, control = control.optim, :
initial value in 'vmmin' is not finite
Calls: <Anonymous> ... equalp.test -> maxp -> ms -> constrOptim.nl -> adpbar -> optim
Execution halted
make: *** [skating.html] Error 1
From
skating.Rmd
: