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


Matrix Survey Plot

The matrix viewer is the central door to get access to the data matrix. The matrix viewer is always open and contains (besides some often required shortcut keys) a four-pane window which gives access to the various aspects of the stored data (graphical survey, column and row identifiers, and a comment/description of the data).

The data matrix is displayed in graphical form on the survey pane by a bird's-eye view. The values of the matrix cells are shown by small colored rectangles whose sizes are proportional to the values they represent.

The matrix viewer provides a the following shortcut keys:

NumEdit This opens the numeric data editor which let you edit your data similar to a spreadsheet.
Resize the Data Matrix This allows you to resize the data matrix by specifying the number of columns and/or the number of rows.
Rescale the Matrix Display Sometimes it is useful to adjust the scaling of the rectangles, either by scaling the columns (= variables) individually, or by scaling the entire data matrix.
Clear Data This clears all data without changing the dimension of the matrix
Paste Data from Matrix Clipbd This allows you to load a data matrix from the matrix clipboard
Help Displaying the corresponding help page

Hint: Variables which contain nominal or ordinal values are scaled according to the ordinal numbers of the cells. Empty cells are indicated by rectangular frames.