mushroom_fuzzy.mix: Mushroom Species Fuzzy/Symbolic Dataset

In dataSDA: Datasets and Basic Statistics for Symbolic Data Analysis

Mushroom Species Fuzzy/Symbolic Dataset

Description

Extended mushroom data with fuzzy stipe thickness (Small/Average/Large), numerical stipe length, interval cap size, and categorical cap colour for two Amanita species (4 specimens).

Usage

data(mushroom_fuzzy.mix)

Format

A data frame with 4 observations (Mushroom1–Mushroom4) and 9 variables:

• specimen: Specimen identifier (character).

• species: Species name (character).

• stipe_thickness: Stipe thickness measurement (numeric, cm).

• fuzzy_small: Fuzzy membership degree for Small (numeric, 0–1).

• fuzzy_average: Fuzzy membership degree for Average (numeric, 0–1).

• fuzzy_large: Fuzzy membership degree for Large (numeric, 0–1).

• stipe_length: Stipe length (numeric, cm).

• cap_size: Cap size as interval string (e.g., "24 +/- 1", character).

• cap_colour: Cap colour (character).

Metadata

Sample size (n)	4
Variables (p)	9
Subject area	Biology
Symbolic format	Fuzzy
Analytical tasks	Descriptive statistics

References

Diday, E. and Noirhomme-Fraiture, M. (Eds.) (2008). Symbolic Data Analysis and the SODAS Software. Wiley. Tables 1.14-1.16.

Examples

data(mushroom_fuzzy.mix)

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