def _stringify_alpha()

in src/mozanalysis/frequentist_stats/linear_models/functions.py [0:0]

• 4 lines of code
• 3 McCabe index (conditional complexity)

def _stringify_alpha(alpha: float) -> tuple[str, str]:
    """Converts a floating point alpha-level to the string
    labels of the endpoint of a confidence interval.
    E.g., 0.05 -> '0.025', '0.975'"""
    if alpha < 0.002 or alpha >= 1:
        raise ValueError("alpha must be in (0.002,1)")
    return f"{alpha / 2:0.3f}", f"{1 - alpha / 2:0.3f}"