The dcast generic in data.table has been passed a data.frame and will attempt to redirect to the reshape2::dcast; please note that reshape2 is deprecated, and this redirection is now deprecated as well. Please do this redirection yourself like reshape2::dcast(biorepliaggregated). In the next version, this warning will become an error.
Address Warnings:
data.table::melt
: 13 times in...data.table::dcast
: 53 times in...