u-analytics 0.27.0

Statistical process control, process capability, Weibull reliability, change-point detection, measurement system analysis (Gage R&R), correlation, regression, distribution analysis, and hypothesis testing.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37

//! Process capability analysis.
//!
//! Computes standard capability indices for assessing how well a process
//! meets specification limits.
//!
//! # Indices
//!
//! - **Cp** — Potential capability (spread vs tolerance)
//! - **Cpk** — Actual capability (centering considered)
//! - **Pp**, **Ppk** — Long-term performance indices
//! - **Cpm** — Taguchi capability (target deviation)
//!
//! # Sigma Level
//!
//! - [`sigma_to_ppm`] — Convert sigma level to PPM defect rate
//! - [`ppm_to_sigma`] — Convert PPM defect rate to sigma level
//!
//! # References
//!
//! - Montgomery (2019), *Introduction to Statistical Quality Control*, 8th ed.

mod indices;
mod nonnormal;
mod percentile;
mod sigma_level;

pub use indices::{
    CapabilityIndices, CapabilityIntervals, ConfidenceInterval, IntervalError, ProcessCapability,
};
pub use nonnormal::{
    boxcox_capability, NonNormalCapabilityError, NonNormalCapabilityResult, DEFAULT_LAMBDA_RANGE,
};
pub use percentile::{
    percentile_capability, CapabilityModel, PercentileCapabilityError, PercentileCapabilityResult,
    MIN_PERCENTILE_DATA,
};
pub use sigma_level::{ppm_to_sigma, sigma_to_ppm};