Masked Arrays

Masked arrays are a type of data structure used in data analysis that allow you to handle datasets with missing or irrelevant values. Think of them as a regular array—like a list of numbers—but with the ability to "mask" or hide certain entries. Masked entries are ignored in calculations, plotting, or analysis, ensuring that missing or invalid data doesn't skew results. This approach helps maintain data integrity and simplifies processing by seamlessly managing incomplete or imperfect datasets without removing data points manually.