I have a dataframe like that:
word freq1 freq2 freq3 freq4 freq5 freq6
1 a 141 97 103 158 71 101
2 b 84 41 51 42 19 22
3 c 15 24 33 87 102 59
4 d 9 33 41 19 93 75
5 e 1 0 4 15 21 16
6 f 91 31 42 16 75 9
I want to calculate parameters (r,p) of Negative Binomial Distribution using maximum likelihood estimation in R for each word in my dataframe. I tried to use method mle2 but cant get any results.
For example word_a <- c(141,97,103,158,71,101)
How can I use mle method to estimate parameters of distribution for this vector "word_a"?