## 1.42.1 axes

The `axes` modifier may be used to specify which axes data should be plotted against when plots have multiple parallel axes – for example, if a plot has an `x`-axis along its lower edge and an `x2`-axis along its upper edge. The following example would plot data using the `x2`-axis as the ordinate axis and the `y`-axis as the abscissa axis:

    plot sin(x) axes x2y1

It is also possible to use the `axes` modifier to specify that a vertical ordinate axis and a horizontal abscissa axis should be used; the following example would plot data using the `y`-axis as the ordinate axis and the `x`-axis as the abscissa axis:

    plot sin(x) axes yx