-working to fix doctest problems for new example in mean_square_displacement_by_species() docstring: 	-now correctly specifying the .png extension on the example plot 	-corrected formatting of plotting for loop for doctest (indented line follows ... rather than >>> now) 	-suppressed the interactive output of some matplotlib lines by assigning output to dummy variable 'a'
-working to fix doctest problems for new example in mean_square_displacement_by_species() docstring:
	-now correctly specifying the .png extension on the example plot
	-corrected formatting of plotting for loop for doctest (indented line follows ... rather than >>> now)
	-suppressed the interactive output of some matplotlib lines by assigning output to dummy variable 'a'

greatlse/diffusion_analysis_MD_simulations,greatlse/diffusion_analysis_MD_simulations,greatlse/diffusion_analysis_MD_simulations,tylerjereddy/diffusion_analysis_MD_simulations,tylerjereddy/diffusion_analysis_MD_simulations,tylerjereddy/diffusion_analysis_MD_simulations