Re: [R] Right censored data, abundant in zeros for regression analysis.

2015-12-28 Thread Cade, Brian
Tom: One possibility might be to use the censored quantile regression implementation (crq) in the quantreg package (accommodates left or right censoring) across a range of quantiles (e.g., 0.05 to 0.95) but where interest is likely to be focused on estimates for quantiles greater than the quantile

Re: [R] Right censored data, abundant in zeros for regression analysis.

2015-12-24 Thread Bert Gunter
Strictly speaking, this is a statistical analysis issue, not an R question, although I grant you that the intersection of the two is nonempty. Nevertheless, I would suggest that you post on a statistics list like stats.stackexchange.com . In fact, because the issue of how to effectively deal with s

[R] Right censored data, abundant in zeros for regression analysis.

2015-12-24 Thread REES T. (706713)
Hi there, Firstly forgive me if this seem obvious, if there is existing literature on this i can't find it. I am looking at conditioning to stimuli and there in the time taken to perform a certain task. The IV for this data is Conditioning periods ranging from 1-34 periods and the DV is the t