Quick Reference

Links to features organised by application.

Quality

Application	User Guide	Examples	API Reference
Process capability	Summary statistics		mqr.process mqr.plot.process
Measurement system analysis	Measurement System Analysis	Notebook — GRR	mqr.msa mqr.plot.msa
Correlation analysis	Correlation		mqr.plot.correlation
Power and sample-size calculation	Sample size		mqr.inference
Confidence intervals	Confidence intervals	Notebook — Confidence Intervals	mqr.inference
Hypothesis tests	Hypothesis tests	Notebook — Hypothesis Tests	mqr.inference mqr.inference.nonparametric

Reliability

See the comprehensive reliability library for:

• parametric and non-parametric lifetime modelling,

• accelerated life testing,

• repairable systems,

• reliability testing,

• models of physical failure: stress-cycles, stress-strain, stress-life, creep, acceleration factors, etc., and

• censored lifetime testing data.

MQR and reliability can be used together, and improvement efforts can just as easily target product reliability as product quality.

Design, Development, Improvement

Application	User Guide	Examples	API Reference
Design of experiments (factorial, central composite, etc.)	Design of Experiments	Notebook — Design of experiments	mqr.doe
Power and sample-size calculations	Sample size		mqr.inference
Confidence intervals	Confidence intervals	Notebook — Confidence Intervals	mqr.inference
Hypothesis tests	Hypothesis tests	Notebook — Hypothesis Tests	mqr.inference mqr.inference.nonparametric
ANOVA, regression	Regression and ANOVA	Notebook — ANOVA Notebook — Fitted Line Regression Notebook — Multiple Regression	mqr.anova mqr.plot.anova mqr.plot.regression

MQR uses pyDOE3 to construct experiments. The library pyDOE3 defines even more experimental designs that can be easily incorporated into MQR tools, or created directly.

Process Monitoring and Control

Application	User Guide	Examples	API Reference
Acceptance sampling, AQL, LTPD, OC-curves	Acceptance Sampling	Notebook — Acceptance Sampling	mqr.plot.spc.oc
Control charts	Statistical Process Control	Notebook — Statistical Quality Control	mqr.spc mqr.plot.spc
Customisable monitoring rules	Alarm rules	Notebook — Statistical Quality Control	mqr.spc.rules mqr.plot.spc