observed.log.likelihood0_Sj_q0 {fabMix} | R Documentation |
Log-likelihood of the mixture model for q=0
Description
Log-likelihood of the mixture model evaluated only at the alive components.
Usage
observed.log.likelihood0_Sj_q0(x_data, w, mu, Sigma, z)
Arguments
x_data |
The observed data |
w |
Vector of mixture weights |
mu |
Vector of marginal means |
Sigma |
|
z |
Allocation vector |
Value
Log-likelihood value
Author(s)
Panagiotis Papastamoulis
Examples
library('fabMix')
data(waveDataset1500)
x_data <- waveDataset1500[ 1:20, -1] # data
z <- waveDataset1500[ 1:20, 1] # class
p <- dim(x_data)[2]
q <- 2
K <- length(table(z)) # 3 classes
# give some arbitrary values to the parameters:
set.seed(1)
w <- rep(1/K, K)
mu <- array( runif(K * p), dim = c(K,p) )
Sigma <- matrix(1:K, nrow = K, ncol = p)
# compute the complete.log.likelihood
observed.log.likelihood0_Sj_q0(x_data = x_data, w = w,
mu = mu, Sigma = Sigma, z = z)
[Package fabMix version 5.1 Index]