The TrIdent R package will need to be dowloaded and installed from GitHub as the tool has not yet been released on CRAN. To do this, follow these steps:
In R-
Install the devtools package if you have not already
install.packages("devtools")
Load the devtools package
library(devtools)
Install TrIdent from my GitHub
devtools::install_github("jlmaier12/TrIdent", ref="master")
Load TrIdent
library(TrIdent)