bearsdepu {datana} | R Documentation |
Age and physical measurement data for wild bears (without missing values)
Description
Wild bears were anesthetized, and their bodies were measured and weighed. One goal of the study was to make a table (or perhaps a set of tables) for people interested in estimating the weight of a bear based on other measurements.
Usage
data(bearsdepu)
Format
Individual-level variables, as follows:
- id
Bear identificator.
- age
Age in total number of months.
- month
Month number within a given year.
- sex
Sex code: 1 =male, 2 = female.
- headL
Length of head, in cm.
- headW
Width of head, in cm.
- neckG
Girth of neck, in cm.
- length
Body length, in cm.
- chestG
Girth of chest, in cm.
- weight
Body weight, in kg.
- obs
Temporal observation number for bear.
- name
name given to bear
Source
According to Prof. Timothy Gregoire at Yale University (New Haven, CT, USA), the data set was supplied by Gary Alt.
References
Entertaining references are in Reader's Digest April, 1979, and Sports Afield September, 1981.
Examples
data(bearsdepu)
head(bearsdepu)
table(bearsdepu$sex)
boxplot(headL~sex, data=bearsdepu)