Function to plot the VAFs of the mutations along time
     
    
    Usage
    plot_vaf_time(x, min_frac = 0, highlight = c(), timepoints_to_int = list())
 
    
    Arguments
- x
- a - mvnmmobject.
 
- min_frac
- value in - [0,1]representing the minimum abundance to show the clusters.
 
- highlight
- a list of labels ID to show. 
- timepoints_to_int
- a list to map each - timepointvalue to an integer.
 
 
    
    
    Examples
    if (FALSE) plot_vaf_time(x, min_frac=0.1)