logsumexp {TargetScore} | R Documentation |
Compute log(sum(exp(x),dim)) while avoiding numerical underflow.
logsumexp(x, margin = 1)
x |
numeric vector or matrix |
margin |
dimension to apply summation |
numeric vector or matrix of the same columns or rows (depending on margin) as x
Yue Li
Mo Chen (2012). Matlab code for Variational Bayesian Inference for Gaussian Mixture Model. http://www.mathworks.com/matlabcentral/fileexchange/35362-variational-bayesian-inference-for-gaussian-mixture-model
logsumexp(matrix(c(1:5)), 2)