[R] Logistic regression with 2 factors and 3 covariates

2011-06-13 Thread Alal
Hello I'm trying to write a model for my data, but Im not sure it's statistically correct. I have one variable (2 levels: A or B). To explain it, I've got 2 factors and 3 continuous variables. I need to do a logistic regression, but... First: can I actually do a logistic regression with all of

Re: [R] 1 continuous non-normal variable ~ 4 factors + 1 continuous covariate (with interactions)

2011-04-13 Thread Alal
Thanks, I guess I can do that, and it actually seem appropriate for one of my variable. But can you do post-hoc tests on a survival analysis? Use contrasts or something? -- View this message in context: http://r.789695.n4.nabble.com/1-continuous-non-normal-variable-4-factors-1-continuous-covar

Re: [R] 1 continuous non-normal variable ~ 4 factors + 1 continuous covariate (with interactions)

2011-04-12 Thread Alal
Thanks Im not sure about the gamma, but a survival analysis seems appropriate, but does it work for factors and continuous covariates? Do you have to verify some conditions beforehand? -- View this message in context: http://r.789695.n4.nabble.com/1-continuous-non-normal-variable-4-factors-1-co

[R] 1 continuous non-normal variable ~ 4 factors + 1 continuous covariate (with interactions)

2011-04-12 Thread Alal
Hello Im struggling on something... I have one continuous variable (A), and I need to explain it with 4 factors, and maybe one continuous covariate. And of course, my variable A is not normal at all (it's a duration in seconds, whole numbers). What can I do? I would know how do deal with it if