[R] help with fitting a distribution

2014-03-31 Thread Timothy Yoo
Hi All, I am trying to model a set of data that's a little bit complicated. Let's say a person can live 365 more days from time t=0. I have data on 100 people, but I only know who died between day 0 and day 30. Everyone else would've died between days 31 and day 365. Is there any way to fit a dis

[R] distribution modeling help

2014-03-31 Thread Timothy Yoo
Hi, I have some data from 1 year ago that is a measure of the number of days a person used a certain product. I used fitdist to build a mle for this data and got a pretty good fit. My issue is that this data is outdated. I have new data from Januarry of this year and would like to build a distrib