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