tau_g_chain: The updated tau_g in the Gibbs sampling process
Description
The updated precision of each gene in each itertaion.
A list with length 2, containing 2 matrices. Each row corresponds
to the updated precision of the G1 or G2 genes in each recorded
iteration.format
The format is:
List of 2
$ : num [1:5, 1:30] 43.7 211.3 12.6 39.6 13.2 ...
$ : num [1:5, 1:30] 49.5 35.7 53.6 33.1 39.1 ...