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A/B testing & experimentation

User bucketing, experiment metrics, statistical comparison, and rollout guardrails.

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A/B testing & experimentation easy

How to Mock Stratified Assignment by Segment in Python

Simulate stratified assignment for A/B experiments by sampling a fixed proportion of units from each segment, with deterministic seeds for reproducibility.

ab-testing sampling random
Python 
import random

def stratified_assignment(segments, seed=None):
    """
    Mock stratified assignment: given a dict of segment -> population size,
    return a dict of segment -> sampled unit ids (deterministic with seed).
    """
    if seed is not None:
        random.seed(seed)
    rng = random.Random(seed)
    res…
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A/B testing & experimentation — Python code examples

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