Function hdr_stddev

deps/hdr_histogram/hdr_histogram.c:683–701

}

double hdr_stddev(const struct hdr_histogram* h)
{
    double mean = hdr_mean(h);
    double geometric_dev_total = 0.0;

    struct hdr_iter iter;
    hdr_iter_init(&iter, h);

    while (hdr_iter_next(&iter))
    {
        if (0 != iter.count)
        {
            double dev = (hdr_median_equivalent_value(h, iter.value) * 1.0) - mean;
            geometric_dev_total += (dev * dev) * iter.count;
        }
    }

    return sqrt(geometric_dev_total / h->total_count);
}

bool hdr_values_are_equivalent(const struct hdr_histogram* h, int64_t a, int64_t b)
{