Calculates reference values for x and y axes at the panel level.
scatter_panel_ref(a, b, ...)vector of interest
vector for other axis
ignored
numeric
Other panel functions: boxplot_panel,
categorical_panel,
corsplom_gg_correlation,
corsplom_gg_diagonal,
corsplom_gg_scatter,
corsplom_panel_correlation,
corsplom_panel_diagonal,
corsplom_panel_scatter,
dens_panel, diag_label,
diag_pin, iso_prepanel,
metaplot_key, metaplot_ref,
panel.meta_densityplot,
panel_tile, scatter_panel
Other reference lines: diag_pin,
metaplot_ref