flopscope.stats.lognorm

This object mirrors scipy.stats.lognorm.

s is the shape parameter: the standard deviation of the underlying normal distribution. It is the first positional argument, ahead of loc and scale, matching SciPy's lognorm signature. pdf deducts 62 * numel(broadcast(input, s, loc, scale)) FLOPs (composite: log + exp + arithmetic, weight 1.0; audit-2 verified; calibration alpha 62.30). cdf deducts 70 * numel(broadcast(input, s, loc, scale)) FLOPs (composite: log + erf rational approx + arithmetic, weight 1.0; audit-2 verified; calibration alpha 69.98). ppf deducts 106 * numel(broadcast(input, s, loc, scale)) FLOPs (composite: ndtri + exp, weight 1.0; audit-2 verified).