bird.mix: Bird Species Mixed Symbolic Dataset

In dataSDA: Datasets and Basic Statistics for Symbolic Data Analysis

Bird Species Mixed Symbolic Dataset

Description

Interval-valued morphological measurements for 20 bird specimens. Despite the .mix suffix, this dataset contains only interval-valued variables (density and size).

Usage

data(bird.mix)

Format

A symbolic data frame (symbolic_tbl) with 20 observations and 2 variables:

• Density: Feather density range (interval).

• Size: Body size range (cm, interval).

Metadata

Sample size (n)	20
Variables (p)	2
Subject area	Zoology
Symbolic format	Interval
Analytical tasks	Descriptive statistics

References

Billard, L. and Diday, E. (2006). Symbolic Data Analysis. Wiley. Table 2.5.

Examples

data(bird.mix)

dataSDA documentation built on June 12, 2026, 9:06 a.m.