wine {asbio}

White wine quality data for data mining

Description

These data concern white variants of the Portuguese "Vinho Verde" wine. Quality is an ordinal variable based on the median assessment of of at least 3 wine experts. Each expert graded wine quality between 0 (very bad) and 10 (excellent).

Usage

data("wine")

Format

A data frame with 4898 observations on the following 12 variables.

Y

Wine quality.

X1

Volatile acidity.

X2

Citric acid content.

X3

Residual Sugar content.

X4

Chloride content.

X5

Free sulfur dioxide content.

X6

Total sulfur dioxide content.

X7

Density.

X8

pH: -\log_{10} [H^{+}].

X9

Sulphate content.

X10

Alcohol content.

X11

Fixed acidity.

Source

Paulo Cortez (Univ. Minho), Antonio Cerdeira, Fernando Almeida, Telmo Matos and Jose Reis (CVRVV) @ 2009

References

Past Usage:

P. Cortez, A. Cerdeira, F. Almeida, T. Matos, Reis, J.(2009). Modeling wine preferences by data mining from physicochemical properties. Decision Support Systems 47(4):547-553.