use a list. or create new class which is a list On Jun 16, 2012 8:52 AM, "Onur Uncu" <onuru...@gmail.com> wrote:
> Hello R Community, > > I have the following design question. I have a data set that looks > like this (shortened for the sake of example). > > Gender Age > M 70 > F 65 > M 70 > > Each row represents a person with an age/gender combination. We could > put this data into a data frame. > > Now, I would like to do some actuarial analysis on this data set. To > do so, I need to create and store a mortality curve for each person in > the table (a mortality curve is a matrix with 2 columns: date and > survival probability). I can write a function that returns a mortality > curve given gender and age. The question is the following: In what > data format should I store all these mortality curve objects? Should I > add a column to the data frame and each entry in that column is a > matrix (a mortality curve)? This way, the mortality curve would be > stored next to age/gender data in the data frame. However, I read in > several places that putting vectors/matrices as elements of a data > frame is a bad idea. I do not know why. What is a good design choice > in this instance please? How should I store the mortality curves? > > Thank you for your help. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
