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Statistical Process Control

Statistical methods for quality control and production process monitoring

Functions

capability Process capability indices
capaplot Process capability plot
controlchart Shewhart control charts
controlrules Western Electric and Nelson control rules
gagerr Gage repeatability and reproducibility study
histfit Histogram with a distribution fit
normspec Normal density plot between specifications

Examples and How To

Control Charts

Visualizing processes over time

Capability Studies

Meeting specifications

Improve an Engine Cooling Fan Using Design for Six Sigma Techniques

This example shows how to improve the performance of an engine cooling fan through a Design for Six Sigma approach using Define, Measure, Analyze, Improve, and Control (DMAIC).

Concepts

Introduction to Statistical Process Control

Monitoring industrial processes

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