LogProbs

This package provides the Type LogProb for calculations with logspace probabilities.

Usage

julia> using LogProbs

julia> p = LogProb(0.2)
LogProb(0.2)

julia> q = LogProb(0.5)
LogProb(0.5)

julia> p + q
LogProb(0.7)

julia> float(p + q)
0.7

julia> log(p + q)
-0.35667494393873234

julia> float(p * q)
0.10000000000000002

julia> q - p
LogProb(0.30000000000000004)

julia> q - p == LogProb(0.3)
false

julia> q - p ≈ LogProb(0.3)
true

julia> q / p
LogProb(2.5)

julia> p / q
LogProb(0.4)

julia> rand(LogProb)
LogProb(0.8973798055014042)

julia> p < q, q < p
(true, false)

julia> information(p) # Shannon information content in bits
2.321928094887362