Calculate the log likelihood of the negative binomial function (and its derivatives)

llikNbinom(x, size, prob, full = FALSE)

Arguments

x: Number of successes
size: Size of trial
prob: probability of success
full: Add the data frame showing x, mean, sd as well as the fx and derivatives

Value

data frame with fx for the pdf value of with dProb that has the derivatives with respect to the parameters at the observation time-point

Author

Matthew L. Fidler

Examples


llikNbinom(46:54, 100, 0.5)
#>          fx dProb
#> 1 -13.25200   108
#> 2 -12.81168   106
#> 3 -12.38560   104
#> 4 -11.97335   102
#> 5 -11.57458   100
#> 6 -11.18892    98
#> 7 -10.81603    96
#> 8 -10.45559    94
#> 9 -10.10728    92

llikNbinom(46:54, 100, 0.5, TRUE)
#>    x size prob        fx dProb
#> 1 46  100  0.5 -13.25200   108
#> 2 47  100  0.5 -12.81168   106
#> 3 48  100  0.5 -12.38560   104
#> 4 49  100  0.5 -11.97335   102
#> 5 50  100  0.5 -11.57458   100
#> 6 51  100  0.5 -11.18892    98
#> 7 52  100  0.5 -10.81603    96
#> 8 53  100  0.5 -10.45559    94
#> 9 54  100  0.5 -10.10728    92