SYSTEMFAILURE: SYSTEMFAILURE

In mistat: Data Sets, Functions and Examples from the Book: "Modern Industrial Statistics" by Kenett, Zacks and Amberti

SYSTEMFAILURE

Description

208 observations on systems operating at 90 geographically dispersed sites.

Usage

data("SYSTEMFAILURE")

Format

A data frame with 208 observations on the following 5 variables.

CustomerNumber

a factor, customer ID

Censor

a numeric vector

TimeStamp

a numeric vector

SystemMaturity

a factor with levels Mature Young

Country

a factor with levels AUSTRALIA AUSTRIA BELGIUM BRAZIL BULGARIA CANADA CHINA DENMARK FINLAND GERMANY HUNGARY INDIA ITALY JAPAN NETHERLANDS NEW ZEALAND POLAND PORTUGAL REPUBLIC OF KOREA ROMANIA RUSSIAN FEDERATION SOUTH AFRICA SPAIN SWITZERLAND TURKEY UNITED KINGDOM UNITED STATES

Details

Twelve systems are new installed and are labeled as 'Young'. All the other systems are labeled 'Mature'. Out of the 208 observations, 68 report time stamps of a failure (uncensored). The other observations are censored, as indicated by the value 1 in the Censor variable column. A measure of time, the time stamp, is recorded for each observation in the data. This variable presented in operational units (activity time), at time of observation. The bigger the time, the longer the system performed. The observations with a value 0 of the Censor variable, represent length of operation till failure of the systems.

Examples

data(SYSTEMFAILURE)
summary(subset(SYSTEMFAILURE, subset = Censor == 0, select = "TimeStamp"))

mistat documentation built on March 7, 2023, 6:43 p.m.