👉 In statistics and machine learning, a "panel" or "panelwise" refers to a statistical analysis that involves multiple data sets being analyzed simultaneously. This approach is often used in econometrics, where researchers aim to understand how different variables influence each other through time. The process typically starts with selecting a set of data from the various panels, which are independent and have been collected independently or at different times. The researcher then groups these data into separate subsets called "panels," which are usually based on the
