plot.h
typedef enum {
GNUPLOT = 0,
PSLATEX,
CGM,
GIF,
EPS,
PNG,
EEPIC,
UNKNOWN
} PLOT_TYPE;
int fprint_gnuplot_variogram(FILE *f, const VARIOGRAM *v, char *epsf,
PLOT_TYPE p, int window_nr);
int fprint_jgraph_variogram(FILE *f, const VARIOGRAM *v);
void fprint_gnuplot_model(FILE *f, const VARIOGRAM *vgm, int fit);