statistics

Statistical Functions (Integer-Scaled)

Functions

Function	Description
`stat_sum`	Sum of all values.
`stat_mean_x10k`	Mean * 10000.
`_stat_sort`	Internal: simple insertion sort for small arrays.
`stat_median`	Median (middle value of sorted data).
`stat_mode`	Mode (most frequent value). Uses O(n^2) counting to avoid alloc_pages overlap.
`stat_min`	Minimum value.
`stat_max`	Maximum value.
`stat_range`	Range (max - min).
`stat_variance_x10k`	Variance * 10000. Uses sum of squared deviations.
`_stat_isqrt`	Integer square root (helper for stdev).
`stat_stdev_x10k`	Standard deviation * 10000.
`stat_percentile`	Percentile (0-100). Returns value at that percentile.

fn stat_sum(data: &i64, n: i64) -> i64

Sum of all values.

fn stat_mean_x10k(data: &i64, n: i64) -> i64

Mean * 10000.

fn _stat_sort(data: &i64, n: i64, out: &i64)

Internal: simple insertion sort for small arrays.

fn stat_median(data: &i64, n: i64) -> i64

Median (middle value of sorted data).

fn stat_mode(data: &i64, n: i64) -> i64

Mode (most frequent value). Uses O(n^2) counting to avoid alloc_pages overlap.

fn stat_min(data: &i64, n: i64) -> i64

Minimum value.

fn stat_max(data: &i64, n: i64) -> i64

Maximum value.

fn stat_range(data: &i64, n: i64) -> i64

Range (max - min).

fn stat_variance_x10k(data: &i64, n: i64) -> i64

Variance * 10000. Uses sum of squared deviations.

fn _stat_isqrt(n: i64) -> i64

Integer square root (helper for stdev).

fn stat_stdev_x10k(data: &i64, n: i64) -> i64

Standard deviation * 10000.

fn stat_percentile(data: &i64, n: i64, p: i64) -> i64

Percentile (0-100). Returns value at that percentile.