The pooledpeaks package was developed by the Blanton Lab as part of Kathleen Kuesters' dissertation. You can install the package directly from GitHub using the following instructions:
Open R and copy the following code into your console
Install devtools and pooledpeaks if you want to install from GitHub
install.packages("devtools") devtools::install_github("kmkuesters/pooledpeaks")
Install pooledpeaks directly from CRAN
install.packages("pooledpeaks")