FILE *pstfil, *hpfile PostScript and LaserJet files for hard
copy.
These may be NULL if not needed.
int xdivs,ydivs The number of X and Y axis divisions
int xgrid,ygrid Grid line flags, 1 for lines, 0 for no lines
int nplots The number of "curves" to be plotted
double *x[],*y[] Arrays of pointers to the arrays of X and
Y values for the curves
int npnts_pnts[] Array of the number of symbol points for
each curve
int npnts_tot[] Array of the total number of points for
each curve (symbols + connected lines)
char *title Character array for the graph title
char *xaxis,*yaxis Character arrays for the X and Y axis
labels
char *msg Array of pointers to character strings to
appear in the message box
int nmsg[] nmsg[0] is the number of lines (character
strings) for the message box, nmsg[1] and
nmsg[2] are the X and Y coordinates for
the beginning of the top line in the
message box in 640 by 480 VGA screen
coordinates.