PAIRS™ is designed to analyze the data you provided and like any method, bad data will render bad results. First, you want to review the data that you have supplied to ensure that it is both correlated and relevant. For example, it is NOT advisable to include a 4000 Sq. Ft. custom built home in a data set with 1200 Sq. Ft. tract homes.
Some of the features to help you review, filter, and locate sensitivities in your data are:
Sub Market Filtering
Proper Data Collection Tips