Ten quick tips for effective dimensionality reduction
Fig 4
A single plot for the wine dataset combines both the samples' and the variables' projection to the first two principal components. AlcAsh, alcalinity of ash; Dim1, dimension 1; Dim2, dimension 2; Flav, flavanoids; NonFlav Phenols, nonflavanoid phenols; OD, OD280/OD315 of diluted wine; PCA, principal component analysis; Phenols, total phenols; Proa, proanthocyanins.