search for: ageyrs

Displaying 4 results from an estimated 4 matches for "ageyrs".

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2011 Oct 27
0
glmmBUGS fails to accept higher level covariates
...level : Medication dose at the Course level: Weight in KG and Age at the Patient level: Weight in KG and Age I am trying to fit a multilevel model as in lmer, but in BUGS. Here is an example of the model I want to run: Linear mixed model fit by REML Formula: totalEEG ~ workDose + (1 + WEIGHTKG + AgeYrs | MRN/COURSE) Data: book AIC BIC logLik deviance REMLdev 7041 7112 -3506 7004 7011 Random effects: Groups Name Variance Std.Dev. Corr COURSE:MRN (Intercept) 6.5755e-06 2.5643e-03 WEIGHTKG 1.9015e-11 4.3606e-06 -1.000...
2008 Aug 06
3
Help in running Stata dataset in R
...0 Variable Class Description 1 scrno integer 2 todaydate Date 3 ethnic character 4 othtribe character 5 dob Date 6 ageyrs integer 7 agemths integer 8 sex character I cannot figure out what the problem is. Please help me. Kind regards, Lazarus Mramba Junior Statistician P.O Box 986, 80108, Kilifi, Kenya Mobile No. +254721292370 Tel: +...
2012 Aug 08
1
basehaz() in package 'Survival' and warnings() with coxph
Hello, I have a couple of questions with regards to fitting a coxph model to a data set in R: I have a very large dataset and wanted to get the baseline hazard using the basehaz() function in the package : 'survival'. If I use all the covariates then the output from basehaz(fit), where fit is a model fit using coxph(), gives 507 unique values for the time and the corresponding cumulative
2012 Aug 09
1
basehaz() in package survival and warnings with coxph
I've never seen this, and have no idea how to reproduce it. For resloution you are going to have to give me a working example of the failure. Also, per the posting guide, what is your sessionInfo()? Terry Therneau On 08/09/2012 04:11 AM, r-help-request at r-project.org wrote: > I have a couple of questions with regards to fitting a coxph model to a data > set in R: > > I have a