NegLLGrassiaIIBin {fitODBOD} | R Documentation |
This function will calculate the Negative Log Likelihood value when the vector of binomial random variables and vector of corresponding frequencies are given with the shape parameters l and c.
NegLLGrassiaIIBin(x,freq,a,b)
x |
vector of binomial random variables. |
freq |
vector of frequencies. |
a |
single value for shape parameter a. |
b |
single value for shape parameter b. |
0 < a,b
freq \ge 0
x = 0,1,2,...
NOTE : If input parameters are not in given domain conditions necessary error messages will be provided to go further.
The output of NegLLGrassiaIIBin
will produce a single numeric value.
Grassia A (1977). “On a family of distributions with argument between 0 and 1 obtained by transformation of the gamma and derived compound distributions.” Australian Journal of Statistics, 19(2), 108–114.
No.D.D <- 0:7 #assigning the random variables
Obs.fre.1 <- c(47,54,43,40,40,41,39,95) #assigning the corresponding frequencies
NegLLGrassiaIIBin(No.D.D,Obs.fre.1,.3,.4) #acquiring the negative log likelihood value