Research information

Statement of the problem

This study explores the chemical composition of wines and the latent structure underlying the measured constituents.

Objectives

To describe the alcohol, total_phenols, flavanoids, and color_intensity of the wines.
To determine the relationship between total_phenols and flavanoids.
To uncover the underlying factor structure among total_phenols, flavanoids, nonflavanoid_phenols, proanthocyanins, and hue.

Dataset

wine.csv178 rows × 13 cols

Column	Kind	Distinct
alcohol	numeric	126
malic_acid	numeric	133
ash	numeric	79
alcalinity_of_ash	numeric	63
magnesium	numeric	53
total_phenols	numeric	97
flavanoids	numeric	132
nonflavanoid_phenols	numeric	39
proanthocyanins	numeric	101
color_intensity	numeric	132
hue	numeric	78
od280/od315_of_diluted_wines	numeric	122
proline	numeric	121

Feasibility & estimateFree

✓ Feasibledesign: correlational · via heuristic

Detected a correlational design with 13 analyzable variable(s) and 3 analytical question(s). Recommended 3 statistical test(s). Estimated cost: 48 credits.

Recommended analysis

To describe the alcohol, total_phenols, flavanoids, and color_intensity of the wines.

Descriptive Statistics(alcohol, total_phenols, flavanoids, color_intensity)

To determine the relationship between total_phenols and flavanoids.

Pearson Correlation(total_phenols, flavanoids)

To uncover the underlying factor structure among total_phenols, flavanoids, nonflavanoid_phenols, proanthocyanins, and hue.

Exploratory Factor Analysis(total_phenols, flavanoids, nonflavanoid_phenols, proanthocyanins, hue)

Dataset Complexity18

Statistical Tests10

AI Interpretation9

Visualizations6

Report Generation5

Total to run48 credits

Estimated runtime: ~45-90 seconds

ResultsComputed

3 tests48 credits

Descriptive Statistics (alcohol, total_phenols, flavanoids, color_intensity)

n	max	min	std	mean	mode	range	median	variable	variance
178	14.830	11.030	0.812	13.001	12.370	3.800	13.050	alcohol	0.659
178	3.880	0.980	0.626	2.295	2.200	2.900	2.355	total_phenols	0.392
178	5.080	0.340	0.999	2.029	2.650	4.740	2.135	flavanoids	0.998
178	13	1.280	2.318	5.058	2.600	11.720	4.690	color_intensity	5.374

Spearman Rank Correlation (total_phenols, flavanoids)

significant

r.879R².773N178p< .001

Spearman r0.879

large

The result is statistically significant (p = 0.0000 < 0.05).

Spearman Rank Correlation was used instead of the Pearson Correlation because the latter's assumption(s) were not met (Normality of total_phenols (Shapiro-Wilk), Normality of flavanoids (Shapiro-Wilk)).

Exploratory Factor Analysis (total_phenols, flavanoids, nonflavanoid_phenols, proanthocyanins, hue)

KMO.764N178

item	factor 1
total_phenols	-0.873
flavanoids	-1.000
nonflavanoid_phenols	0.531
proanthocyanins	-0.665
hue	-0.506

Wine Chemical Profile

Publication-ready report

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