Fisher-type (2x3) table association analysis for calculating one (marginal) p-value
fisher23_fast(obs, epsilon)
A list containing:
The non-randomized (conservative) p-value
The randomized (non-conservative) p-value
The conditional probability of the observed table (given the merginals)
ThorstenDickhaus
The observed (2x3) table
A threshold for comparing real numbers to zero