- ds_linear
- The data.frame to containing the simple linear data.
There should be one record per observation. 
- ds_periodic
- The data.frame to containing the reoccurring/periodic bands.
There should be one record per observation per stage.
If there are three stages, this data.frame should have three times as many rows as
- ds_linear.
 
- x_name
- The variable name containing the date. 
- y_name
- The variable name containing the dependent/criterion variable. 
- stage_id_name
- The variable name indicating which stage the record belongs to.
For example, before the first interruption, the - stage_idis "1", and is "2" afterwards.
 
- periodic_lower_name
- The variable name showing the lower bound
of a stage's periodic estimate. 
- periodic_upper_name
- The variable name showing the upper bound
of a stage's periodic estimate. 
- palette_dark
- A vector of colors used for the dark/heavy graphical elements.
The vector should have one color for each - stage_idvalue.  If no vector is specified,
a default will be chosen, based on the number of stages.
 
- palette_light
- A vector of colors used for the light graphical elements.
The vector should have one color for each - stage_idvalue.  If no vector is specified,
a default will be chosen, based on the number of stages.
 
- change_points
- A vector of values indicate the interruptions between stages.
It typically works best as a Date or a POSIXct class. 
- change_point_labels
- The text plotted above each interruption. 
- draw_periodic_band
- A boolean value indicating if the bands should be plotted
(whose values are take from the - periodic_lower_nameand- periodic_upper_name).
 
- jagged_point_size
- The size of the observed data points. 
- jagged_line_size
- The size of the line connecting the observed data points. 
- band_alpha_dark
- The amount of transparency of the band appropriate
for a stage's x values. 
- band_alpha_light
- The amount of transparency of the band comparison stages
for a given x value. 
- change_line_alpha
- The amount of transparency marking each interruption. 
- change_line_size
- The width of a line marking an interruption. 
- title
- The string describing the plot. 
- x_title
- The string describing the x-axis. 
- y_title
- The string describing the y-axis.