将列表转换为yes/no的dataframe

I have a dataframe of values that I am trying to turn into a two-mode matrix. The first dataframe contains a people and games (by id). I am trying to turn that into a dataframe that lists all games and whether a person has them or not. Can someone explain how to do this in R, or is this a question better suited to another programming language?I have a dataframe of values that I am trying t