Hi chubot, Two things: 1) A data.frame is in fact a list of vectors of the same length "compacted" together. 2) I find the types very "sensible" for a person

Hi chubot, Two things: 1) A data.frame is in fact a list of vectors of the same length "compacted" together. 2) I find the types very "sensible" for a person doing statistics. But I guess (almost) everything makes sense once you get used to it...