Marginal probability of observing a VTEC anomaly during a time interval of n days (a), conditional probability of a VTEC anomaly given that an ICME is observed during the same period, i.e., sensitivity (b), and conditional probability of observing an ICME given that a VTEC anomaly is observed during the time interval, i.e. posterior probability (c) for the 2011 data set. Note that the row numbers represent the number of comparison metrics required for classification of a VTEC anomaly.