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Altman, Naomi; Krzywinski, Martin
Nature methods, 10/2015, Letnik: 12, Številka: 10Journal Article
Correlation implies association, but not causation. Conversely, causation implies association, but not correlation. Most studies include multiple response variables, and the dependencies among them are often of great interest. For example, we may wish to know whether the levels of mRNA and the matching protein vary together in a tissue, or whether increasing levels of one metabolite are associated with changed levels of another. This month we begin a series of columns about relationships between variables (or features of a system), beginning with how pairwise dependencies can be characterized using correlation.
