What is the Qinglong panel for?

Qinglong panel is the interface of the server on the computer.

Qinglong panel data, that is, panel data, also known as? Parallel data? , refers to the sample data formed by taking multiple sections in time series and selecting sample observation values on these sections at the same time; Or it is an m*n data matrix, which records a data index of m objects at n time nodes.

Panel data is literally translated into English, and some people translate panel data into comprehensive data and parallel data. Because there is no unified statement in China, it should be more accurate to use panel data directly in English. It is said that panel data is also very common, but the name of panel data does not reflect the actual meaning of such data, so many researchers are reluctant to use it.

Panel data analysis method is a new statistical method developed in recent decades. Panel data can overcome the trouble of multiple collinearity in time series analysis, providing more information, more changes, less collinearity, more degrees of freedom and higher estimation efficiency. Unit root test and cointegration analysis of panel data is one of the most advanced fields at present.