regex search on column via DataFrame
regex search on column via DataFrame

seagoat/mining,mlgruby/mining,jgabriellima/mining,chrisdamba/mining,mining/mining,AndrzejR/mining,avelino/mining,avelino/mining,mlgruby/mining,mining/mining,mlgruby/mining,AndrzejR/mining,seagoat/mining,chrisdamba/mining,jgabriellima/mining