bird_species.mix: Bird Species Mixed Symbolic Dataset

In dataSDA: Datasets and Basic Statistics for Symbolic Data Analysis

Bird Species Mixed Symbolic Dataset

Description

Symbolic data for 3 bird species (Swallow, Ostrich, Penguin) with interval-valued size, categorical flying, and categorical migration. Foundational SDA example from 600 individual bird observations.

Usage

data(bird_species.mix)

Format

A data frame with 3 observations (Swallow, Ostrich, Penguin) and 5 variables:

• species: Species name (character).

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

• size_l, size_u: Size range (cm, Min-Max pair).

• migration: Migratory behavior (TRUE/FALSE, logical).

Metadata

Sample size (n)	3
Variables (p)	5
Subject area	Zoology
Symbolic format	Mixed (interval, categorical)
Analytical tasks	Descriptive statistics

References

Diday, E. and Noirhomme-Fraiture, M. (Eds.) (2008). Symbolic Data Analysis and the SODAS Software. Wiley. Table 1.2, p.6.

Examples

data(bird_species.mix)

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