Network: transformations() add join
Network: transformations() add join

suchow/Wallace,jcpeterson/Dallinger,Dallinger/Dallinger,jcpeterson/Dallinger,jcpeterson/Dallinger,berkeley-cocosci/Wallace,Dallinger/Dallinger,jcpeterson/Dallinger,Dallinger/Dallinger,Dallinger/Dallinger,berkeley-cocosci/Wallace,suchow/Wallace,jcpeterson/Dallinger,Dallinger/Dallinger,berkeley-cocosci/Wallace,suchow/Wallace