tires.sus {nutshell}R Documentation

Stepped Up Speed Tire Failure Test Data

Description

This data set contains the results of an experiment on tire durability conducted by the NHTSA.

Usage

data(tires.sus)

Format

A data frame with 66 observations on the following 27 variables.

Phase
a numeric vector
Tire_Type
a factor with levels B, C, D, E, H, and L
Barcode
a numeric vector
Dot_Number
a factor
Dot_MidWeekDate
a factor
Collection_Date
a factor
DOT_Age
a numeric vector
X1st_Task
a factor with levels HS_AIR ,HS_AIR_F, and HS_AIR_F_S
X1st_Task_Status
a factor with levels Tested
Position
a factor with levels Left Front, Left Rear, New, Right Front, Right Rear, and Spare
ORN
a factor with levels New, OEM, and Repl
AZ_Use
a numeric vector
DOT_Est_Mileage_mi
a numeric vector
DOT_Est_Mileage_km
a numeric vector
Initial_IP_kPa
a numeric vector
Load_kg
a numeric vector
Time_To_Failure
a numeric vector
Speed_At_Failure_km_h
a numeric vector
Mileage_At_Failure_km
a numeric vector
Millions_Cycles_At_Failure
a numeric vector
Failure_Type
a factor
Failure.Notes
a factor
Photo_1
a factor
Photo_2
a factor
Photo_3
a factor
Photo_4
a factor
Invoice_Date
a factor representing invoice dates

Details

This data is used as an example in the book "R in a Nutshell" from O'Reilly Media.

Source

The data for this example was taken from http://www-nrd.nhtsa.dot.gov/vrtc/ca/tires.htm

Examples

data(tires.sus)
library(lattice)
dotplot(as.factor(Speed_At_Failure_km_h) ~ Time_To_Failure | Tire_Type,
        data=tires.sus)

[Package nutshell version 1.0 Index]