complaints

A data frame with 20 rows and 3 variables:<ul>
<li>month Month.</li>
<li>Number of complaints.</li>
<li>sales Sales volume.</li>
</ul>

datasets

Functions for making run charts, Shewhart control charts and
Pareto charts for continuous quality improvement. Included control charts
are: I, MR, Xbar, S, T, C, U, U', P, P', and G charts. Non-random variation
in the form of minor to moderate persistent shifts in data over time is
identified by the Anhoej rules for unusually long runs and unusually few
crossing [Anhoej, Olesen (2014) <doi:10.1371/journal.pone.0113825>].
Non-random variation in the form of larger, possibly transient, shifts is
identified by Shewhart's 3-sigma rule [Mohammed, Worthington, Woodall (2008)
<doi:10.1136/qshc.2004.012047>].

Jacob Anhoej

qicharts2

Quality Improvement Charts

complaints function

An object of class <code>data.frame</code> with 20 rows and 3 columns.

complaints: Complaints

Description

Usage

Arguments

Format

References