Actually, I have gone through some articles in which the authors have correlated gut bacterial groups with body weight or other key physiological parameters by using Pearson's correlation test. But I am not able to understand whether bacterial groups from all animal groups were analysed with the parameters of interest or only the bacterial groups from the main treatment group was correlated. If all bacteria from all groups were correlated than how? Please suggest the way of doing such analysis. If anyone has idea about such kind of analysis than please suggest me. The suggestions will be highly helpful and appreciable

Thanks .