What does the -1 value in lookup columns indicate in Caboodle?

In Caboodle, a lookup column with a value of -1 signifies that the particular value has not been specified or does not exist in the context of the data being represented. This means that when encountering a -1 in lookup columns, it serves as an indication of the absence of a specific data point rather than signaling the validity of existing data or the applicability of data. This is a fundamental aspect of data management within Caboodle, as it helps in distinguishing between valid entries and those that are not defined or absent. Understanding this nuance aids in better interpretation of the dataset and ensures accurate data analysis and reporting.