def fmt_metric_value()

in analysis/render.py [0:0]

• 26 lines of code
• 14 McCabe index (conditional complexity)

def fmt_metric_value(x: np.float64, metric_type: str) -> str:
    """Format a metric value"""
    if np.isnan(x):
        out = "--"
    elif np.isinf(x):
        sign = "" if x > 0 else "-"
        out = f"{sign}∞"

    elif metric_type in ["EventRate", "UserRate"]:
        dp = 0 if x == 0 or np.isclose(x, 100) else 1
        out = format(x / 100.0, f".{dp}%")

    elif metric_type in ["EventCount", "UserCount"]:
        if x >= 1e15:
            out = format(x, ".2e")
        elif x >= 1e12:
            out = f"{x / 1e12:.1f}T"
        elif x >= 1e9:
            out = f"{x / 1e9:.1f}B"
        elif x >= 1e6:
            out = f"{x / 1e6:.1f}M"
        else:
            out = format(int(x), ",d")

    # Sum, Average, Percentile, etc
    else:
        if np.fabs(x) >= 10_000 and np.fabs(x) < 1e6:
            out = format(x, ",.0f")
        else:
            out = format(x, ",.4g").replace("e+0", "e+").replace("e-0", "e-")

    return out