The Data Processing and Summaries reports are useful for preprocessing your data prior to fitting a model. There are data cleaning, transformation, and alignment buttons available in the Data Processing Report that correspond to the options in the Data Processing red triangle menu. See Data Processing Report Options. Each time you perform a preprocessing step, the graphs and summary results are automatically updated. You can perform multiple preprocessing steps in sequence. Each step is added to the Steps list of the Data Processing report. To remove the most recent step, click the Remove Last Step button below the Steps outline.