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_max_line_width ()

int
plotspec_max_line_width (GPT_SPEC *spec);

plotspec_clone_lines ()

GPT_LINE *
plotspec_clone_lines (GPT_SPEC *spec,
                      int *err);

plotspec_add_arrow ()

int
plotspec_add_arrow (GPT_SPEC *spec);

plotspec_delete_arrow ()

int
plotspec_delete_arrow (GPT_SPEC *spec,
                       int i);

plotspec_clone_arrows ()

GPT_ARROW *
plotspec_clone_arrows (GPT_SPEC *spec,
                       int *err);

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 (GPT_SPEC *spec,
                FILE *fp);

plotspec_add_fit ()

int
plotspec_add_fit (GPT_SPEC *spec,
                  FitType f);

print_auto_fit_string ()

void
print_auto_fit_string (FitType fit,
                       FILE *fp);

gp_line_data_columns ()

int
gp_line_data_columns (GPT_SPEC *spec,
                      int i);

gp_line_style_display_name ()

const char *
gp_line_style_display_name (int t);

gp_style_index_from_name ()

int
gp_style_index_from_name (const char *s);

gp_style_index_from_display_name ()

int
gp_style_index_from_display_name (const char *s);

get_style_spec ()

gp_style_spec *
get_style_spec (int t);

gp_keypos_from_name ()

int
gp_keypos_from_name (const char *s);

gp_keypos_from_display_name ()

int
gp_keypos_from_display_name (const char *s);

get_keypos_spec ()

gp_key_spec *
get_keypos_spec (int t);

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);

plotspec_add_bars_info ()

int
plotspec_add_bars_info (GPT_SPEC *spec,
                        double xmin,
                        double xmax,
                        double ymin,
                        double ymax,
                        const char *fname);

plotspec_allocate_bars ()

int
plotspec_allocate_bars (GPT_SPEC *spec);

plotspec_set_bar_info ()

int
plotspec_set_bar_info (GPT_SPEC *spec,
                       int i,
                       double t1,
                       double t2);

plotspec_set_bars_limits ()

void
plotspec_set_bars_limits (GPT_SPEC *spec,
                          double t1,
                          double t2,
                          double ymin,
                          double ymax);

plotspec_remove_bars ()

void
plotspec_remove_bars (GPT_SPEC *spec);

GP_MAXFORMULA

#define GP_MAXFORMULA 128

GP_BORDER_DEFAULT

#define GP_BORDER_DEFAULT (-1)

LT_AUTO

#define LT_AUTO (-2)

enum GpLineStyle

enum GpKeyPos

enum GpRange

gp_style_spec

typedef struct gp_style_spec_ gp_style_spec;

struct gp_style_spec_

struct gp_style_spec_ {
    int id;
    const char *name;
    const char *trname;
};

gp_key_spec

typedef struct gp_key_spec_ gp_key_spec;

struct gp_key_spec_

struct gp_key_spec_ {
    int id;
    const char *str;
};

plotbars

typedef struct plotbars_ plotbars;

enum 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 */
    float pscale;                  /* scale factor for points */
    char rgb[8];                   /* rgb color specification */
    char yaxis;                    /* 1 for left, 2 for right */
    int type;                      /* 1, 2, ... (style) */
    int ptype;                     /* point type */
    int dtype;                     /* dash type */
    float width;                   /* line width, default 1.0 */
    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

GPT_LABEL

typedef struct {
    char text[PLOT_LABEL_TEXT_LEN + 1]; 
    double pos[2];
    int just;
} GPT_LABEL;

enum gp_arrow_flags

GPT_ARROW

typedef struct {
    double x0, y0, x1, y1;
    int flags;
} GPT_ARROW;

struct GPT_SPEC_

struct GPT_SPEC_ {
    FILE *fp;
    char fname[MAXLEN];        /* for gui purposes */
    PlotType code;             /* to deal with FREQ, FCAST... */
    GptFlags flags;            /* bitwise OR of options */
    int heredata;              /* plot file uses "heredoc" for data */
    FitType fit;               /* type of fitted line shown */
    int nobs;                  /* number of observations */
    int okobs;                 /* number of fully valid observations */
    int datacols;              /* number of data columns */
    int pd;                    /* frequency (time series data) */
    int nbars;                 /* number of time-series shaded bars */
    char xvarname[MAXDISP];    /* name of x variable */
    char yvarname[MAXDISP];    /* name of y variable */
    char titles[5][MAXTITLE];  /* main, x, y, y2, x2 */
    double range[5][2];        /* axis range specifiers */
    double logbase[3];         /* axis log-scales base (0 for linear) */
    int keyspec;               /* position of key (or none) */
    char timefmt[16];          /* time format, if applicable */
    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 */ 
    char ytics[64];            /* y-axis tic marks */
    char *xticstr;             /* special xtics */
    char *x2ticstr;            /* special x2tics */
    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 */
    GPT_ARROW *arrows;         /* arrows drawn onto graph */
    int n_arrows;              /* 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_cub;       /* coeffs for cubic fit */
    gretl_matrix *b_inv;       /* coeffs for inverse fit */
    gretl_matrix *b_log;       /* coeffs for semi-log fit */
    gretl_matrix *b_linlog;    /* coeffs for linear-log fit */
    double scale;              /* for GUI use */
    char *labeled;             /* for GUI use */
    void *ptr;                 /* for GUI use */
    plotbars *bars;            /* for GUI use */
    char *fontstr;             /* for GUI use */
    gretl_matrix *auxdata;     /* for GUI use */
};