autoplot.imu6: Plot the Wavelet Variances of IMU Object in Split Type
In SMAC-Group/gmwm: Generalized Method of Wavelet Moments

Plot each WV variance in a split graph

## S3 method for class 'imu6'
autoplot(object, CI = TRUE, background = "white",
  transparence = 0.1, line.color = NULL, line.type = NULL,
  point.size = NULL, point.shape = NULL, CI.color = "#003C7D",
  title = "Haar Wavelet Variance Representation", title.size = 15,
  axis.label.size = 13, axis.tick.size = 11,
  axis.x.label = expression(paste("Scale ", tau)),
  axis.y.label = expression(paste("Wavelet Variance ", nu)),
  facet.label.size = 13, facet.label.background = "#003C7D33",
  scales = "free_y", ...)

`object`	A `wvar.imu` object
`CI`	A `boolean` that indicates whether the confidence interval should be plotted.
`background`	A `string` that determines the graph background. It can be `'grey'` or `'white'`.
`transparence`	A `double` that ranges from 0 to 1 that controls the transparency of the confidence interval.
`line.color`	A `vector` of `string` that indicates the color of the line drawn (e.g. black, blue, red, etc.)
`line.type`	A `vector` of `string` that indicates the type of line (e.g. solid, dotted, etc.)
`point.size`	A `vector` of `integer` that indicates the size of points on lines.
`point.shape`	A `vector` of `integer` that indicates the shape of points on lines.
`CI.color`	A `string` that indicates the color of the confidence interval (e.g. black, red, #003C7D, etc.)
`title`	A `string` that indicates the title of the graph.
`title.size`	An `integer` that indicates the size of title.
`axis.label.size`	An `integer` that indicates the size of label.
`axis.tick.size`	An `integer` that indicates the size of tick mark.
`axis.x.label`	A `string` that indicates the label on x axis.
`axis.y.label`	A `string` that indicates the label on y axis.
`facet.label.size`	An `integer` that indicates the size of facet label.
`facet.label.background`	A `string` that indicates the background color of the facet label.
`scales`	Same as `scales` in `facet_grid()` in `ggplot2` package: should scales be fixed ("fixed"), free ("free"), or free in one dimension ("free_x", "free_y"). The default is "free_y" in this function.
`...`	Additional options.