Chemical and tasting data from wines in Northern Portugal.

wine

Format

A data frame containing 6497 rows and 13 columns.

fixed.acidity

fixed acidity (nummeric)

volatile.acidity

volatile acidity (nummeric)

citric.acid

citric acid (nummeric)

residual.sugar

residual sugar (nummeric)

chlorides

chlorides (nummeric)

free.sulfur.dioxide

free sulfur dioxide (nummeric)

total.sulfur.dioxide

total sulfur dioxide (nummeric)

density

density (nummeric)

pH

PH Value (nummeric)

sulphates

Sulphates (nummeric)

alcohol

Alcohol (nummeric)

quality

Quality (nummeric, score between 0 and 10)

type

Criterion: Is the wine red or white? (24.61% vs.75.39%)

References

P. Cortez, A. Cerdeira, F. Almeida, T. Matos and J. Reis (2009). Modeling wine preferences by data mining from physicochemical properties. Decision Support Systems, 47 (4), 547--553. https://doi.org/10.1016/j.dss.2009.05.016