E7.5: Data on Static Weights and Weight in Motion of Trucks

In SenSrivastava: Datasets from Sen & Srivastava

Description

The E7.5 data frame has 26 rows and 6 columns.

Usage

data(E7.5)

Format

This data frame contains the following columns:

sw.1

a numeric vector, static weight of axle 1.

wim.1

a numeric vector, weight in motion of axle 1.

sw.23

a numeric vector, static weight of axles 2–3.

wim.23

a numeric vector, weight in motion of axles 2–3.

sw.45

a numeric vector, static weight of axles 4–5.

wim.45

a numeric vector, weight in motion of axles 4–5.

Details

Trucks can be weighted by two methods. In one, a truck needs to go into a weighting station and each axle is weighted by conventional means. The other is newer and a somewhat experimental method where a thin pad is placed on the highway and axles are weighted as trucks pass over it. Former weight are called static weights (sw) while later are called weights in motion (wim).

Source

Saleh Mumayiz, Urban Transportation Center, University of Illinois at Chicago, who compiled the data from a data set provided by the Illinois Department of Transportation.

Examples

data(E7.5)
summary(E7.5)
plot(E7.5)

Example output

      sw.1           wim.1           sw.23           wim.23     
 Min.   : 8660   Min.   : 5616   Min.   :11920   Min.   :13104  
 1st Qu.: 8860   1st Qu.: 6240   1st Qu.:18295   1st Qu.:19448  
 Median : 9740   Median : 6864   Median :26880   Median :29952  
 Mean   : 9936   Mean   : 7208   Mean   :24425   Mean   :27072  
 3rd Qu.:10710   3rd Qu.: 8112   3rd Qu.:30890   3rd Qu.:33904  
 Max.   :12740   Max.   :10192   Max.   :33560   Max.   :42016  
     sw.45           wim.45     
 Min.   : 8520   Min.   : 9984  
 1st Qu.:15830   1st Qu.:16640  
 Median :23110   Median :20384  
 Mean   :22653   Mean   :22588  
 3rd Qu.:31225   3rd Qu.:29952  
 Max.   :34100   Max.   :37024  

SenSrivastava documentation built on May 2, 2019, 7:29 a.m.