nickel {RCMinification}

Electroless nickel concentrations

Description

Electroless nickel concentrations in a chrome plating process were measured at the beginning of each eight hour work shift for a period of 25 days. A concentration of 4.5 ounces per gallon is considered optimal in this application.

Usage

data(nickel)

Format

A time series object

Source

Farnum, N. (1994) Statistical Quality Control and Improvement. Belmont, Duxbury Press.

Examples

    ts.plot(nickel)