Hello, This is about correlation analysis among factors. The correlation analysis used to lots of study area. In my case, microbiome and enviornmental factors are analyzed by correlation methods. "Hmisc" package is used in RStudio. Let's follow the below steps to analysis. 1. Install packages install.packages("Hmisc") install.packages("xlsx") 2. Run packages library(Hmisc) library(xlsx) 3. Set c..