Model Browser User's Guide    

Applying a Filter

A filter is the name for a constraint on the data set used to exclude some records. You use the Filter Editor to create new filters.

  1. Choose Filters -> New Filter, or click the  button in the User-Defined Variables & Filtering window.
  1. The Filter Editor dialog appears.

    You define the filter using logical operators on the existing variables.

  1. Keep all records with speed (n) greater than 1000. Double-click the variable n, then the operator >, then type 1000.
  2. Click OK to impose this filter on the current data set.

This new filter appears in the center list of the User-Defined Variables & Filtering window. The Filtration results pie chart shows graphically how many records were removed by the imposition of this filter, and the number of records removed appears in the Results column of the Filter Expression pane. The number of records at the top of the Data Editor window also changes accordingly (for example, Records 200/264 indicates that 64 records have been filtered out).


  Defining a New Variable Sequence of Variables