dwaste: Crock data.

In alr4: Data to Accompany Applied Linear Regression 4th Edition

Description

An experiment was conducted to study the O2UP, oxygen uptake in milligrams of oxygen per minute, given five chemical measurements: biological oxygen demand (BOD), total Kjeldah nitrogen (TKN), total solids (TS), total vital solids (TVS), which is a component of TS, and chemical oxygen demand (COD), each measured in milligrams per liter (Moore, 1975).

Format

This data frame contains the following columns:

Day

Day number

BOD

Biological oxygen demand

TKN

Total Kjeldahl nitrogen

TS

Total Solids

TVS

Total volatile solids

COD

Chemical oxygen demand

O2UP

Oxygen uptake

Source

Moore, J. (1975). Total Biomedical Oxygen Demand of Animal Manures. Unpublished Ph. D. disseration, University of Minnesota.

References

Weisberg, S. (2014). Applied Linear Regression, 4th edition. Hoboken NJ: Wiley.

Examples

head(dwaste)

Example output

Loading required package: car
Loading required package: effects
Loading required package: carData

Attaching package: 'carData'

The following objects are masked from 'package:car':

    Guyer, UN, Vocab

lattice theme set by effectsTheme()
See ?effectsTheme for details.
  Day  BOD TKN   TS  TVS  COD O2UP
1   0 1125 232 7160 85.9 8905 36.0
2   7  920 268 8804 86.5 7388  7.9
3  15  835 271 8108 85.2 5348  5.6
4  22 1000 237 6370 83.8 8056  5.2
5  29 1150 192 6441 82.1 6960  2.0
6  37  990 202 5154 79.2 5690  2.3

alr4 documentation built on May 2, 2019, 6:40 p.m.