Plot a 2D scatter-plot with a point standing in for each data point # Arguments `x` - x values `y` - y values `options` - Array of PlotOption<&str> controlling the appearance of the plot element. The relevant options are: `Caption` - Specifies the caption for this dataset. Use an empty string to hide it (default). `PointSymbol` - Sets symbol for each point `PointSize` - Sets the size of each point
( &'l mut self, x: X, y: Y, options: &[PlotOption<&str>], )