bird_species_extended.mix: Bird Species Extended Mixed Symbolic Dataset

In dataSDA: Datasets and Basic Statistics for Symbolic Data Analysis

Bird Species Extended Mixed Symbolic Dataset

Description

Three bird species (Geese, Ostrich, Penguin) with interval-valued height, distribution-valued color, and categorical flying/migratory variables.

Usage

data(bird_species_extended.mix)

Format

A data frame with 3 observations and 6 variables:

• species: Species name (character).

• flying: Flying ability (Yes/No, character).

• height_l: Height lower bound (cm, numeric).

• height_u: Height upper bound (cm, numeric).

• color: Color distribution as weighted set string (e.g., "{white, 0.3; black, 0.7}").

• migratory: Migratory behavior (Yes/No, character).

Metadata

Sample size (n)	3
Variables (p)	6
Subject area	Zoology
Symbolic format	Mixed (interval, categorical, distribution)
Analytical tasks	Descriptive statistics

References

Billard, L. and Diday, E. (2006). Symbolic Data Analysis. Wiley. Table 2.19.

Examples

data(bird_species_extended.mix)

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