The above article shows us a pi graph, while we will use R to conduct bar graphs to analyze the properties of bacteria deeper. We analyzed bacteria from the campus soil samples, and study the abundance through phylum into class and dig deeper. Bacteria >>> Proteobacteria >>> Betaproteobacteria >>> Kurkholderiales >>> Comamonadaceae >>> Polaromonas As it goes from phylum to class to order to family to genus and finally to species. With the help of the bar graph, we can find the abundance of specific kind of bacterias.