ean_count = df_tidy[&#34;count&#34;].mean(axis=0)
    
    ### Plot
    p = (
        ### data
        p9.ggplot(data=df_tidy, 
                  mapping=p9.aes(x=&#34;index&#34;, y=&#34;count&#34;, fill=&#34;index&#34;, label=&#34;index&#34;), 
                 )

        ### theming
        + p9.theme_classic()
        + p9.theme(
            figure_size = (W,H),
            axis_text_x = p9.element_text(rotation=75)
        )

        + p9.labs(
            x=&#34;&#34;, # e.g. &#34;Cell-type&#34;
      