[R] Cumulative Function

From: Mark Miller <mmiller_at_nassp.uct.ac.za>
Date: Fri 26 Aug 2005 - 19:15:00 EST

I was wandering if anyone cold advise me on a good algorithm to turn a set of data from its original for into its cumulative form. I have written a piece of code that takes the data and does essentially what a histogram function would do, except add to the new bin the sum in the previous bin. Once that is done I divide by the frequency in the last bin plus 1. I know the ecdf() function exists in R, but I want to use it to fit the cumulative distributions to the data and ecdf() produces a non-subscriptable vector and so fitdistr() cannot be used on it.

Thanks for any help you can give
Mark Miller



R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Fri Aug 26 19:22:30 2005

This archive was generated by hypermail 2.1.8 : Fri 03 Mar 2006 - 03:39:56 EST