Wine Data Set

Data set consisting of 178 rows and 27 columns containing data about wine from the Piedmont region of Italy.

data("wine")

Format

data.frame() with 27 columns:

wine:

wine name (categorical variable with levels Barbera, Barolo, Grignolino).

alcohol:

alcohol percentage (numeric).

sugar:

sugar-free extract (numeric).

acidity:

fixed acidity (numeric).

tartaric:

tartaric acid (numeric).

malic:

malic acid (numeric).

uronic:

uronic acids (numeric).

pH:

pH (numeric).

ash:

ash (numeric).

alcal_ash:

alcalinity of ash (numeric).

potassium:

potassium (numeric).

calcium:

calcium (numeric).

magnesium:

magnesium (numeric).

phosphate:

phosphate (numeric).

cloride:

chloride (numeric).

phenols:

total phenols (numeric).

flavanoids:

flavanoids (numeric).

nonflavanoids:

nonflavanoid phenols (numeric).

proanthocyanins:

proanthocyanins (numeric).

colour:

colour intensity (numeric).

hue:

hue (numeric).

OD_dw:

\(OD_{280}/OD_{315}\) of diluted wines (numeric).

OD_fl:

\(OD_{280}/OD_{315}\) of flavanoids (numeric).

glycerol:

glycerol (numeric).

butanediol:

2,3-butanediol (numeric).

nitrogen:

total nitrogen (numeric).

proline:

proline (numeric).

methanol:

methanol (numeric).

Source

The data set was obtained from the R\ package sn (for convenience). It represent chemical measurements on each of 178 wine specimens belonging to three types of wine produced in the Piedmont region of Italy. The data set includes all variables listed by Forina et al. (1986) with the exception of ‘Sulphate’. The first variable is categorial, all others are numeric.

Forina, M., Lanteri, S. Armanino, C., Casolino, C., Casale, M. and Oliveri, P. V-PARVUS 2008: an extendible package of programs for esplorative data analysis, classification and regression analysis. Dip. Chimica e Tecnologie Farmaceutiche ed Alimentari, Università di Genova, Italia. Web-site (not accessible as of 2014): http://www.parvus.unige.it

References

Forina M., Armanino C., Castino M. and Ubigli M. (1986). Multivariate data analysis as a discriminating method of the origin of wines. Vitis 25, 189--201.

Examples

data("wine")