OnePlot(DFs_list)
    Plot all functions from the provided list of DFs (or DFset) on a single figure.
    
- Parameters:
 
- 
 
- DFs_list
 
- - set/list of functions (DF-objects) or even a single DF.
 
- figsize
 
- (x,y) - size of the plot in inches
 
- dpi
 
- resolution of the plot
 
- hardcopy
 
- if true, do not show the plot, just save it to eps.
 
- outfile
 
- name of the file to save the plot
 
- title
 
- the plot's title. if None, it will be autogenerated using provided 
title_template string.
 
- title_template
 
- template to generate the title. Default is 'Kind.Type.Name.DFsetName'
 
- legend_template
 
- template to generate legend for each function. Default is 'Kind.Type.Name.DFsetName'
 
- y_lim
 
- tuple(y_min, y_max) specify range for y-axis
 
- x_lim
 
- tuple(x_min, x_max) specify range for x-axis
 
- legend_fontsize
 
- Font size in legend
 
- title_fontsize
 
- Font size in title
 
- legend_transparency
 
- Transparency of the legend's background
 
- xlabel
 
- label for X axis
 
- ylabel
 
- label for Y axis
 
- xylabel_fontsize
 
- Font size of axis labels
 
Examples: 
MT.OnePlot(singleDF)
MT.OnePlot([DF1, DF2, DF3])
MT.OnePlot(DFset)
MT.OnePlot([DFset1, DFset2])
MT.OnePlot(DFset, figsize=(10, 7), dpi=80, 
      hardcopy=True, outfile='plot.eps',
      title='SomeTitle',
      legend_template = 'Name.DFsetName',
      legend_fontsize=14, title_fontsize=18,
      xlabel='Distance', ylabel='RDF', xylabel_fontsize=12))