DataLab is a compact statistics package aimed at exploratory data analysis. Please visit the DataLab Web site for more information....

Internal data structure

DataLab uses the following simple data structure: a matrix with p variables and n objects contains the data to be analyzed. In parallel to this matrix, four linear arrays are stored which contain the object names (length n), the variable names (length p), the class information (length n) and the levels of measurement of the variables. In addition, the comment may contain a description of the data.

Hint: The size of the data matrix may be restricted (depending on your DataLab license) to some maximum number of cells (product of n times p). The maximum size of the data matrix is displayed in the About box of DataLab (command Help/About)

Last Update: 2012-Jul-25