Re: [R] survreg FUNCTION

2015-04-08 Thread peter dalgaard
On 08 Apr 2015, at 10:14 , CHIRIBOGA Xavier wrote: > Dear members, > > > > I am trying a survival analysis , I got: > > > > Error: could not find function "survreg" > > > > I already load > > the packages: survival > > the function: splines > Load or install? I suspect you actually

[R] survreg FUNCTION

2015-04-08 Thread CHIRIBOGA Xavier
Dear members, I am trying a survival analysis , I got: Error: could not find function "survreg" I already load the packages: survival the function: splines What can I do? Thanks for you help, Xavier __ R-help@r-project.org mailing lis

[R] SURVREG Function

2012-09-27 Thread Francesca Meucci
Hi, I need some help to manage frailty in Survreg function; in particular I'm looking for more information about frailty in survreg function applied to a loglogistic hazard function. Actually I need to develope a predictor for frailty random variable realization (similar to the Proportional Haz

Re: [R] Survreg function for loglogistic hazard estimation

2010-03-19 Thread akeras
I a trying to use survreg to fit a Weibull distribution. From the last few messages I understand how to interpret the parameters. However, how do I get the covariance of lambda and alpha? Is there a predict command for that? Thanks -- View this message in context: http://n4.nabble.com/Survreg-f

Re: [R] survreg function in survival package

2009-11-16 Thread carol white
reading the r-help list. My suggestion is that you > copy this to the list. > --David > On Nov 13, 2009, at 9:02 AM, carol white wrote: > > > Thanks for your reply. > > > > which parameter presents the base line scale > parameter? How is it possible to set the sha

Re: [R] survreg function in survival package

2009-11-13 Thread David Winsemius
On Nov 13, 2009, at 3:17 AM, carol white wrote: Hi, Is it normal to get intercept in the list of covariates in the output of survreg function with standard error, z, p.value etc? Does it mean that intercept was fitted with the covariates? Does Value column represent coefficients or some t

[R] survreg function in survival package

2009-11-13 Thread carol white
Hi, Is it normal to get intercept in the list of covariates in the output of survreg function with standard error, z, p.value etc? Does it mean that intercept was fitted with the covariates? Does Value column represent coefficients or some thing else? Regards, -

[R] Survreg function + deviation

2009-09-12 Thread Felipe
I am trying to estimate by MLE weibull coefficients and deviation. But how can i estimate deviation? I tried to find at the list and at the internet this but couldn't make it. Anyone could help me on this? Thanks. [[alternative HTML version deleted]]

Re: [R] Survreg function for loglogistic hazard estimation

2009-06-08 Thread chenjiakai
Dear Terry, Thanks a lot for your reply. The result of survreg reads like: Call: survreg(formula = Surv(end, status) ~ fico_demean, data = raw, dist = "loglogistic", model = TRUE) Value Std. Error z p (Intercept) 2.98365 1.34e-03 2233.2 0.00e+00 fico_demean

Re: [R] Survreg function for loglogistic hazard estimation

2009-06-08 Thread Terry Therneau
---begin included message -- I am trying to use R to do loglogistic hazard estimation. My plan is to generate a loglogistic hazard sample data and then use survreg to estimate it. If everything is correct, survreg should return the parameters I have used to generate the sample data. I have w

[R] Survreg function for loglogistic hazard estimation

2009-06-06 Thread chenjiakai
I am trying to use R to do loglogistic hazard estimation. My plan is to generate a loglogistic hazard sample data and then use survreg to estimate it. If everything is correct, survreg should return the parameters I have used to generate the sample data. I have written the following code to d