Re: [R] Use of survreg.distributions

2008-04-26 Thread COREY SPARKS
Sparks, Ph.D. Assistant Professor Department of Demography and Organization Studies University of Texas San Antonio One UTSA Circle San Antonio, TX 78249 email:[EMAIL PROTECTED] Date: Fri, 25 Apr 2008 10:02:21 -0700 (PDT) From: Abdus Sattar <[EMAIL PROTECTED]> Subject: Re: [R] Use of survreg.

Re: [R] Use of survreg.distributions

2008-04-25 Thread Abdus Sattar
-- Original Message From: Terry Therneau <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Cc: r-help@R-project.org Sent: Friday, April 25, 2008 8:46:45 AM Subject: Re: [R] Use of survreg.distributions --begin included message --- I am using survreg(Surv()) for fitting a Tobit model of left-ce

Re: [R] Use of survreg.distributions

2008-04-25 Thread Terry Therneau
--begin included message --- I am using survreg(Surv()) for fitting a Tobit model of left-censored longitudinal data. For logarithmic transformation of y data, I am trying use survreg.distributions in the following way: tfit=survreg(Surv(y, y>=-5, type="left")~x + cluster(id), dist="gaussian",

Re: [R] Use of survreg.distributions

2008-04-24 Thread Abdus Sattar
Dear R-user: I am using survreg(Surv()) for fitting a Tobit model of left-censored longitudinal data. For logarithmic transformation of y data, I am trying use survreg.distributions in the following way: tfit=survreg(Surv(y, y>=-5, type="left")~x + cluster(id), dist="gaussian", data=y.data,