Data demonstrating the two key relationships concerning RPORITA prediction error for the 2003 RMI measles outbreak.

The prediction day difference (PDD) is the difference between the second day of direct input on which the prediction is based and the day of the prediction. The Days since Start of Immunization (DSI) is the number of days between the day of prediction and the start of the Outbreak Response Immunization. This data presents a numerical depiction of the two critical relationships with regard to the Recursive Prediction of the Outbreak Response Immunization Threshold Algorithm (RPORITA) error: 1) between DSI and prediction error, and 2) between PDD and prediction error.