1. A computer-implemented method for configuring a continuous anomaly detection service, comprising: accessing a plurality of anomaly detection definitions, wherein each of the plurality of anomaly detection definitions comprises an anomaly detection configuration that defines how to generate and store, for a corresponding signal, a sequential set of data points from a plurality of historical data points not stored in the sequential set of data points; receiving a request to modify a first anomaly detection definition of the plurality of anomaly detection definitions, wherein the first anomaly detection definition comprises a first anomaly detection configuration for a corresponding first signal; updating the first anomaly detection configuration based on the request to modify; updating the first signal, based on the updated first anomaly detection configuration, by replacing data points of the sequential set of data points of the first signal with a subset of the plurality of historical data points; and continuously analyzing memory storing the signals to determine a corresponding anomaly result for each of the plurality of anomaly detection definitions, wherein the anomaly result for the first anomaly detection definition is based on the updated first anomaly detection configuration.