canine: Canine Data Set in the cg package

Description

A data frame used to illustrate the cg package. It has a One Factor / One-Way / Unpaired Samples layout.

Usage

data(canine)

Arguments

Format

A 5-by-5 data frame with 5 numeric observations from an experiment on the following 5 groups of beagle dogs.

AE: castration plus estradiol and androstanediol
E1: castration plus low dose estradiol
E2: castration plus high dose estradiol
CC: castration alone
NC: no castration (normal controls)

Details

The canine data set that comes with the cg package is in groupcolumns format for the prepareCGOneFactorData call. Each column represents a group, and the observations in that group's column are the individual response or outcome values.

The 5 groups are regarded as levels of one factor in the prepareCGOneFactorData, fit, and other methods in the cg package.

An alternative format of this data set is contained in canine.listfmt. See that help file for details, including how it would be read and prepared by cg.

The purpose of this experiment was to evaluate the effect of a physiological dose of estradiol on prostate growth in dogs using ultrasound. See the reference below for details. Comparisons amongst all five groups are of interest.

References

Rhodes, L., Ding, V.D.H., Kemp, R.K., Khan, M.S., Nakhla, A.M., Pikounis, B., Rosner, W., Saunders, H.M. and Feeney, W.P. (2000). "Estradiol causes a dose dependent stimulation of prostate growth in castrate beagle dogs." The Prostate, Volume 44, 8-18.

Examples

Run this code

data(canine)
str(canine)

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