plot: an optional to include an initial plot. If TRUE, the default, returns a ggplot object with a initial plot for lcc class. If FALSE never includes.
shape: Draw points considering a shape parameter. Legal shape values are the numbers 0 to 25, and 32 to 127; see aes_linetype_size_shape. Default is 1.
colour: an specification for lines color. Default is "black".
size: an specification for lines size. Should be specified with a numerical value (in millimetres); see aes_linetype_size_shape. Default is 0.5.
xlab: a title for the x axis. Default is "Time".
ylab: title for the y axis. Default is "LCC".
Returns
a list with components for each of the possible arguments.