Details
GP_MAXFORMULA
#define GP_MAXFORMULA 128
GP_BORDER_DEFAULT
#define GP_BORDER_DEFAULT (-1)
LT_AUTO
#define LT_AUTO (-2)
enum GpLineStyle
typedef enum {
GP_STYLE_NONE,
GP_STYLE_LINES,
GP_STYLE_POINTS,
GP_STYLE_LINESPOINTS,
GP_STYLE_IMPULSES,
GP_STYLE_DOTS,
GP_STYLE_STEPS,
GP_STYLE_BOXES,
GP_STYLE_ERRORBARS,
GP_STYLE_FILLEDCURVE,
GP_STYLE_CANDLESTICKS
} GpLineStyle;
enum GpKeyPos
typedef enum {
GP_KEY_LEFT_TOP,
GP_KEY_RIGHT_TOP,
GP_KEY_LEFT_BOTTOM,
GP_KEY_RIGHT_BOTTOM,
GP_KEY_OUTSIDE,
GP_KEY_NONE
} GpKeyPos;
gp_style_spec
typedef struct gp_style_spec_ gp_style_spec;
enum gp_line_flags
typedef enum {
GP_LINE_USER = 1 << 0,
GP_LINE_BOXDATA = 1 << 1
} gp_line_flags;
GPT_LINE
typedef struct {
int varnum; /* ID number of variable to plot */
int style; /* lines, points, etc. */
char title[MAXTITLE]; /* key or legend title */
char formula[GP_MAXFORMULA]; /* expression to plot (rather than data) */
double scale; /* scale factor for data */
char rgb[8]; /* rgb color specification */
char yaxis; /* 1 for left, 2 for right */
int type; /* 1, 2, ... (style) */
int ptype; /* point type */
int width; /* default 1, could be bigger */
char ncols; /* number of data columns (0 for formula) */
float whiskwidth; /* whiskerbar width (boxplots) */
char flags; /* additional options */
} GPT_LINE;
PLOT_LABEL_TEXT_LEN
#define PLOT_LABEL_TEXT_LEN 31
enum gp_just_codes
typedef enum {
GP_JUST_LEFT,
GP_JUST_CENTER,
GP_JUST_RIGHT
} gp_just_codes;
GPT_LABEL
typedef struct {
char text[PLOT_LABEL_TEXT_LEN + 1];
double pos[2];
int just;
} GPT_LABEL;
GPT_SPEC
typedef struct {
FILE *fp;
char fname[MAXLEN]; /* for gui purposes */
PlotType code; /* to deal with FREQ, FCASTERR... */
GptFlags flags; /* bitwise OR of options */
FitType fit; /* type of fitted line shown */
int nobs; /* number of observations */
int okobs; /* number of fully valid observations */
int pd; /* frequency (time series data) */
char xvarname[MAXDISP]; /* name of x variable */
char yvarname[MAXDISP]; /* name of y variable */
char titles[4][MAXTITLE]; /* main, x, y, y2 */
double range[4][2]; /* axis range specifiers */
double logbase[3]; /* axis log-scales base (0 for linear) */
int keyspec; /* position of key (or none) */
char xfmt[16]; /* x-axis tic format */
char xtics[64]; /* x-axis tic marks */
char mxtics[4]; /* minor tics */
char yfmt[16]; /* y-axis tic format */
int termtype; /* gnuplot "terminal" code */
int n_lines; /* number of lines */
int samples; /* number of samples for parametric plots */
int border; /* gnuplot border code */
int bmargin; /* bottom margin */
float boxwidth; /* when using box style for frequency plots */
GPT_LINE *lines; /* details on individual lines */
char **literal; /* additional commands */
int n_literal; /* number of the above */
double *data; /* data to plot */
char **markers; /* data-point markers (not always present) */
int n_markers; /* number of such markers */
GPT_LABEL *labels; /* textual labels written onto graph */
int n_labels; /* number of the above */
int *reglist; /* regression list for X-Y plot with fitted line */
gretl_matrix *b_ols; /* coeffs for linear fit */
gretl_matrix *b_quad; /* coeffs for quadratic fit */
gretl_matrix *b_inv; /* coeffs for inverse fit */
char *labeled; /* for GUI use */
void *ptr; /* for GUI use */
} GPT_SPEC;
plotspec_new ()
GPT_SPEC * plotspec_new (void);
plotspec_destroy ()
void plotspec_destroy (GPT_SPEC *spec);
plotspec_label_init ()
void plotspec_label_init (GPT_LABEL *lbl);
plotspec_add_line ()
int plotspec_add_line (GPT_SPEC *spec);
plotspec_delete_line ()
int plotspec_delete_line (GPT_SPEC *spec,
int i);
plotspec_clone_lines ()
GPT_LINE * plotspec_clone_lines (GPT_SPEC *spec,
int *err);
plotspec_max_line_width ()
int plotspec_max_line_width (GPT_SPEC *spec);
plotspec_add_label ()
int plotspec_add_label (GPT_SPEC *spec);
plotspec_delete_label ()
int plotspec_delete_label (GPT_SPEC *spec,
int i);
plotspec_clone_labels ()
GPT_LABEL * plotspec_clone_labels (GPT_SPEC *spec,
int *err);
plotspec_print ()
int plotspec_print (const GPT_SPEC *spec,
FILE *fp);
print_auto_fit_string ()
void print_auto_fit_string (FitType fit,
FILE *fp);
gp_line_style_string ()
const char * gp_line_style_string (int t);
gp_style_from_string ()
int gp_style_from_string (const char *s);
gp_style_from_translation ()
int gp_style_from_translation (const char *s);
gp_keypos_from_string ()
int gp_keypos_from_string (const char *s);
gp_keypos_from_translation ()
int gp_keypos_from_translation (const char *s);
print_keypos_string ()
void print_keypos_string (int t,
FILE *fp);
set_plotfit_line ()
void set_plotfit_line (char *title,
char *formula,
FitType f,
const double *b,
double x0,
double pd);
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