Use Monte-Carlo methods for business forecasting. Define transition methods (for example a month-based one) and keep track of events you are interested in. Automatically generates a 95% confidence interval and mean values.
gem install mc_forecast
require "mc_forecast"
# all arguments optional
e = McForecast::Simulation.new.run(init_state: nil, steps: 1, trials: 1_000) do |_state, _step, _trial|
events = {}
events[:coin] = rand > 0.5 ? 1 : 0
# block should return a new state and a hash of events
[nil, events]
end
# e[:coin][:mean][0] ~ 0.5
# e[:coin][:quantiles][0.025][0] ~ 0
# e[:coin][:quantiles][0.975][0] ~ 1
If you want to report a bug, or have ideas, feedback or questions about the gem, let me know via GitHub issues and I will do my best to provide a helpful answer. Happy hacking!
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