environment.mix: EPA Environmental Data Mixed Symbolic Dataset

In dataSDA: Datasets and Basic Statistics for Symbolic Data Analysis

EPA Environmental Data Mixed Symbolic Dataset

Description

Mixed symbolic dataset from the US EPA with 14 state-group observations and 17 variables of mixed types: interval-valued environmental measurements and modal-valued (distributional) categorical variables.

Usage

data(environment.mix)

Format

A symbolic data frame (symbolic_tbl, of class c("symbolic_tbl", "tbl_df", "tbl", "data.frame")) with 14 observations and 17 variables. The first four are modal-valued (symbolic_modal) variables and the remaining thirteen are interval-valued (symbolic_interval) variables. This matches the structure of ggInterval::Environment.

• URBANICITY: Modal-valued urbanicity distribution (modal).

• INCOMELEVEL: Modal-valued income level distribution (modal).

• EDUCATION: Modal-valued education distribution (modal).

• REGIONDEVELOPME: Modal-valued regional development distribution (modal).

• CONTROL: Environmental control index range (interval).

• SATISFY: Satisfaction index range (interval).

• INDIVIDUAL: Individual concern index range (interval).

• WELFARE: Welfare index range (interval).

• HUMAN: Human impact index range (interval).

• POLITICS: Political concern index range (interval).

• BURDEN: Burden index range (interval).

• NOISE: Noise pollution index range (interval).

• NATURE: Nature preservation index range (interval).

• SEASETC: Seas/coastal index range (interval).

• MULTI: Multi-indicator range (interval).

• WATERWASTE: Water/waste index range (interval).

• VEHICLE: Vehicle emissions index range (interval).

Metadata

Sample size (n)	14
Variables (p)	17
Subject area	Environment
Symbolic format	Mixed (interval, modal)
Analytical tasks	Descriptive statistics, Clustering

Source

Extracted from the ggInterval package (Environment).

References

Jiang, B.-S. and Wu, H.-M. (2025). ggInterval: an R package for visualizing interval-valued data using ggplot2. R package version 0.2.5. https://CRAN.R-project.org/package=ggInterval

Examples

data(environment.mix)

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