SYSTEM LIMITS

This section documents some relevant limits when using Dataplot. Note that many of these limits can be set (in the file DPCOPA.INC) before Dataplot is compiled on a specific system. The limits below are the default values, but the limits for your specific system may be set differently.

1. MAXOBV = 2,000,000

   Defines the maximum number of observations for a single variable. This is the parameter most likely to be modified before Dataplot is compiled. It will typically be in the range 1,000,000 to 2,000,000.

2. MAXOBW = 10*MAXOBV

   Defines the total size of the data work space. Note that the DIMENSION command can be used to re-allocate between rows and columns with the restriction that the maximum number of rows cannot exceed MAXOBV.

3. MAXPOP = 2*MAXOBV

   Defines the maximum number of points on a plot.

4. MAXNME = 50000

   Define the maximum number of names (variables, parameters, strings, matrices).

5. MAXSTR = 255

   Defines the maximum number of characters in a single command line.

6. MAXEDC = 24*MAXOBV

   Defines the maximum number of characters that the EDIT/FED command can accomodate.

7. MAXEDL = 25000

   Defines the maximum number of lines for the EDIT/FED command.

8. MAXCMP = 35

   Defines the maximum number of coefficients in multilinear regression.

9. MAXLIS = 200 MAXCIS = 255

   Define the maximum number of lines/columns in the LIST/SAVE table.

10. MAXLIL = 20000
    MAXCIL = 255
    

    Define the maximum number of lines/columns in the LOOP table.

11. MAXLIP = 20

    Define the maximum number of lines in the REPLOT table.

12. MAXPM = 200

    Define the maximum number of pixmaps that can be saved.

13. MAXTOM = 46*MAXOBV/3

    Define the maximum size (rows times columns) for a matrix. Note that the DIMENSION MATRIX command can be used to specify the allocation between rows and columns in the matrix.

14. Define the following plot control component dimensions:

    MAXTC	= 100	= the maximum number of tic marks on an axis.
    MAXLG	= 100	= the maximum number of legends.
    MAXBX	= 100	= the maximum number of boxes.
    MAXAR	= 100	= the maximum number of arrows.
    MAXSG	= 100	= the maximum number of segments.
    MAXLN	= 100	= the maximum number of line traces.
    MAXCH2	= 100	= the maximum number of character traces.
    MAXFL	= 100	= the maximum number of region fills.
    MAXPT	= 100	= the maximum number of patterns.
    MAXSP	= 100	= the maximum number of spikes.
    MAXBA	= 100	= the maximum number of bars.
    MAXRE	= 100	= the maximum number of regions.
    MAXTX	= 100	= the maximum number for the text command.
    MAXSUB	= 10	= the maximum number of subregions.
    MAXGRP	= 5	= the maximum number of group label variables.
    MAXGR2	= 40	= the maximum number of characters for a group label.
    MAXGLA	= MAXOBV/100	= the maximum number of levels for a group label.
    MAXCNL	= 100	= the maximum number of contour labels.

15. MAXCH = 200

    Define the maximum number of characters in a text string for a title or label.

16. MAXLG2 = 200

    Define the maximum number of characters in a legend.

17. MAXF1 = 50,000

    Define the total number of characters for all strings/functions.

18. MAXF2 = 500

    Define the maximum number of strings/functions.

19. MAXF3 = 500

    Define the maximum number of characters printed for the last model fitted.

20. MAXRCL = 9999

    Define the maximum number of characters that can be read from a single record in a data file.