Observations deemed to be outliers can be excluded from analysis by enclosing the value in square brackets, or included again by removing the square brackets surrounding the value. Analyse-it provides a simple way to mark or unmark an observation as an outlier. We rtecommend attaching a Note/Comment to cells containing outliers to explain why they are excluded.
To mark (or unmark) an observation as an outlier:
(click to enlarge)