Fig. 5: t-distributed stochastic neighbor embedding (t-SNE) demonstrating the placement of each specimen as a data point in an unsupervised manner based on the 5 most discriminant features.
From: Interim clinical trial analysis of intraoperative mass spectrometry for breast cancer surgery

Data points are labeled by their case number followed by N (normal) in green or T (tumor) in red, and then by sample number if there was more than one specimen for that designation. The data points were then colored based on the ion intensities of the five significant lipid peaks.