The IBRtools package calculates two important indexes IBR (Integrated Biomarker Response) and IBRv2 (Integrated Biological Response version 2), it also calculates the intermediate values for enzyme activity for each index, and it has a graphing function to perform radarplots that make great data visualization for this type of data!
# install.packages("devtools")
# library(devtools)
Sys.setenv("R_REMOTES_NO_ERRORS_FROM_WARNINGS"=TRUE) #this is so warnings don't turn into errors
devtools::install_github("ecologicaltools/IBRtools")
library(IBRtools)
Code -> Download zip -> Unzip it in your computer and open the directory IBRtools -> run the code devtools::install() -> update the packages as requested
(The simpler is just use it in Rstudio Cloud and then export the files you want to save in your computer later on)