hierarchy.int: Hierarchy Interval Dataset

In dataSDA: Datasets and Basic Statistics for Symbolic Data Analysis

Hierarchy Interval Dataset

Description

Interval-valued version of the hierarchy dataset. See hierarchy for the classical version.

Usage

data(hierarchy.int)

Format

A symbolic data frame (symbolic_tbl) with 20 observations and 6 variables:

• Y: Response variable range (interval).

• X1: Hierarchy level 1 category (a/b/c, character).

• X2: Hierarchy level 2 category (a1/a2, character; NA for non-a).

• X3: Hierarchy level 3 category (a11/a12, character; NA for non-a1).

• X4: Predictor range for group b (interval; NA for non-b).

• X5: Predictor range for group c (interval; NA for non-c).

Metadata

Sample size (n)	20
Variables (p)	6
Subject area	Methodology
Symbolic format	Interval
Analytical tasks	Descriptive statistics, Regression

References

Billard, L. and Diday, E. (2006). Symbolic Data Analysis. Wiley. Table 2.15.

Examples

data(hierarchy.int)

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