bearsdepu: Age and physical measurement data for wild bears (without...

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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) 

datana documentation built on June 13, 2025, 1:11 a.m.