$par
[1] 1968.6114940 1998.3089261 2015.8006898 2021.6419856    0.9332422

$objective
[1] 0.2640621

$convergence
[1] 0

$iterations
[1] 69

$evaluations
function gradient 
      95      366 

$message
[1] "both X-convergence and relative convergence (5)"

