Data Consistency Processing

Learn the types of missing or special values and about dealing with them.

After we have data that’s converted to the right type and is technically correct, the next step is to check for consistency. In this step, we must develop strategies to deal with missing values, or special values: NAN, NA, INF (Infinite), and NULL. We’ll also need to figure out a plan to identify and deal with outliers and impossible data, such as negative age.

Get hands-on with 1200+ tech skills courses.