The function of a data analyst involves collecting, processing, and analyzing data to help organizations make informed decisions. Data analysts utilize statistical tools and programming languages like Python or R to explore large datasets, identify trends, and derive actionable insights. They often create visualizations and dashboards to present their findings clearly and facilitate discussions with stakeholders. By transforming raw data into relevant information, data analysts play a crucial role in strategic planning, improving efficiency, and enhancing the overall decision-making process within organizations.