1. A method for diagnosing a cardiovascular condition, the method comprising: recording a vectorcardiogram for a subject under evaluation to obtain a functional recording; comparing the functional recording with functional recordings of other subjects by: measuring spatiotemporal distances between the functional recordings, creating a dissimilarity matrix of the measured spatiotemporal distances, extracting feature vectors from the dissimilarity matrix, and embedding the feature vectors in a high-dimensional space that preserves the distances between the functional recordings; and diagnosing the subject under evaluation based upon the comparison.