mnnegLL: mnnegLL generic multinomial negative log-likelihoods

In MQMF: Modelling and Quantitative Methods in Fisheries

mnnegLL generic multinomial negative log-likelihoods

Description

mnnegLL a generic multinomial negative log-likelihood that requires observed frequencies and predicted frequencies, although the predicted frequencies could also be the final proportions, as long as they sum to one. It checks that the number of predicted values matches the number of observed values

Usage

mnnegLL(obs, predf)

Arguments

obs	the original observed frequencies
predf	the predicted frequencies or proportions

Value

a single scalar value

Examples

  obs <- c(0,0,6,12,35,40,29,23,13,7,10,14,11,16,11,11,9,8,5,2,0)
  predf <- c(0.1,0.9,4.5,14.4,29.7,39.9,35.2,21.3,10.9,8.0,9.5,12.1,
             14.1,14.7,13.7,11.5,8.6,5.8,3.5,1.9,0.9) 
 mnnegLL(obs,predf)   # should be  705.5333

MQMF documentation built on Sept. 8, 2023, 5:14 p.m.