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Goffice Reference Manual | ![]() |
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GogRegCurve; gcharconst * gog_reg_curve_get_equation (GogRegCurve *reg_curve); double gog_reg_curve_get_R2 (GogRegCurve *reg_curve); void gog_reg_curve_get_bounds (GogRegCurve *reg_curve, double *xmin, double *xmax);
typedef struct { GogTrendLine base; GogSeries *series; gboolean weighted; GODataVector *weights; GogDatasetElement *bounds; gboolean skip_invalid; /* do not take into account invalid data */ int ninterp; /* how many points to use for display the curve as a vpath */ double *a; /* calculated coefficients, must be allocated by derived class */ double R2; /* squared regression coefficient */ char *equation; } GogRegCurve;
gcharconst * gog_reg_curve_get_equation (GogRegCurve *reg_curve);
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void gog_reg_curve_get_bounds (GogRegCurve *reg_curve, double *xmin, double *xmax);
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