ベイズ統計学習KIT

■ An app that lets you "learn" and "use" Bayesian statistics without complicated formulas

Bayes Lab is a learning and experimenting app that allows you to load your own data (CSV) and check "how reliable the results are?" using probability and range, even without specialized statistical knowledge.

"Is it okay to judge based only on the average?" "Did things really improve before and after the improvement?"

It answers these kinds of real-world questions using the Bayesian statistical framework.

■ Easy in 3 Steps
1. Choose your objective (proportion / comparison of A and B / number of items / measured value)
2. Prepare a CSV in that format (simply copy the sample)
3. Analyze → Results explained simply in Japanese

First-time users can try it immediately with sample data that doesn't require any files.

■ What you can do (automatic model selection)

• Success rate/failure rate: Estimated range of the true success rate (95% confidence interval)
• A/B testing: Probability that B is better than A, and the degree of improvement
• Data count: Average incidence rate per day, probability of exceeding a certain number of cases next time
• Comparison of continuous values: Mean and standard deviation for each group

The optimal statistical model (Beta-Binomial / Gamma-Poisson, etc.) is automatically selected from the column names in the CSV file.

■ What you can learn (learning guide)

• What is Bayesian statistics? / Prior and posterior distributions

• Poisson distribution / Gamma-Poisson model

• Beta-Binomial model / A/B comparison

• Data type and model correspondence table

Each page includes diagrams (graphs) and concrete examples. Even if technical terms appear, you can learn them on the spot.

You can also check your understanding with a 30-question quiz.

■ For those who:

・Are monitoring defect rates and anomaly counts in manufacturing/quality control

・Want to correctly interpret the results of A/B tests and surveys

・Are unsure about making judgments based solely on "averages" and "percentages"

・Want to learn Bayesian statistics hands-on

■ Privacy Considerations

All imported CSV files and analysis results are processed solely within your device.

No data is transmitted over the internet (no network access required).

Bayes Lab, which encourages thinking in terms of probability rather than being swayed by numbers, will change the way you interpret data.