|DataLab is a compact statistics package aimed at exploratory data analysis. Please visit the DataLab Web site for more information....|
|Home Introduction Internal data structure|
|See also: Concepts behind DataLab, Editing the Data, Basic Skills, Introduction, Guided Tour, Guided Tour: How to Work with DataLab, Help, Guided Tour: Example Data
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.