Function interp_grid_xaxis 

fn interp_grid_xaxis(
    args: &[RValue],
    named: &[(String, RValue)],
    context: &BuiltinContext<'_>,
) -> Result<RValue, RError>

Draw an x-axis on the grid graphics device.

@param at numeric vector of tick mark positions (in native coordinates) @param label character vector of labels, or TRUE for automatic @param main logical; if TRUE (default), draw below the viewport @param gp graphical parameters @param vp viewport to use @param name grob name @param draw whether to draw immediately (default TRUE) @return an xaxis grob (invisibly)