After you import the estimation data, as described in Import Data (GUI), you can perform the following preprocessing operations using the Data Preprocessing Tool in Simulink® Design Optimization™ software:
Exclusion — Exclude a portion of the data from the estimation process. You can exclude data by:
Selecting it with your mouse.
Graphically by selecting regions on a plot.
Using rules, such as upper or lower bounds.
Handle missing data –– Remove missing data, or compute missing data using interpolation.
Handle outliers –– Remove outliers.
Detrend — Remove mean values or a straight line trend.
Filter — Smooth data using a first-order filter, an arbitrary transfer function, or an ideal filter.