how to determine whether a bacteria is otu positive or negative which of the following describes ambiguous co-occurrences of bacteria? what is spearman correlations which otus indicate bacteria what is spearman correlation what is a spearman correlation what is spearman correlation method what are otus in bacteria what is spearman correlation in environmental data which type of correlation between bacteria and environment what is the otu and spearman correlation what kind of correlation is there between the otus and spearman correlation which of the following otu is strongly associated with the presence of bacteria in the environment which bacteria have strong avoidance? how to analyze otus correlation how to calculate spearman correlation in an otu what is nit correlation in microbiology? which organisms are affected by environmental conditions how to analyze the relationship between the otus and the pos. correlations why use spearman clustering