On Sun, Nov 2, 2008 at 3:57 PM, Therneau, Terry M., Ph.D.
<[EMAIL PROTECTED]> wrote:
> Brostram wrote
>> The survreg function cannot fit left-censored data (correct me if I am
>> wrong).
> in response to my suggestion to use that routine.
>
> You are wrong. Try reading the help file for survreg,
Brostram wrote
> The survreg function cannot fit left-censored data (correct me if I am wrong).
in response to my suggestion to use that routine.
You are wrong. Try reading the help file for survreg, or the references given
there.
The survreg function does not fit left-truncated data, however.
On Sun, Nov 2, 2008 at 11:22 AM, Christian Ritz <[EMAIL PROTECTED]> wrote:
> Hi Göran,
>
> the R package NADA is specifically designed for left-censored data:
>
> http://www.statistik.uni-dortmund.de/useR-2008/slides/Helsel+Lee.pdf
>
>
> The function cenreg() in NADA is a front end to survreg().
N
Hi Göran,
the R package NADA is specifically designed for left-censored data:
http://www.statistik.uni-dortmund.de/useR-2008/slides/Helsel+Lee.pdf
The function cenreg() in NADA is a front end to survreg().
Christian
Göran Broström wrote:
> On Fri, Oct 31, 2008 at 2:27 PM, Terry Therneau <[E
On Fri, Oct 31, 2008 at 2:27 PM, Terry Therneau <[EMAIL PROTECTED]> wrote:
> Use the survreg function.
The survreg function cannot fit left censored data (correct me if I am
wrong!), neither can phreg or aftreg (package eha). On the other hand,
if Borja instead wanted to fit left truncated data (
Use the survreg function.
There are many different ways to parameterize a Weibull. The survreg function
imbeds it a general location-scale familiy, which is a different
parameterization than the rweibull function.
> y <- rweibull(1000, shape=2, scale=5)
> survreg(Surv(y)~1, dist="weibull"
Dear Barja
Have you looked at "gamlss" y "gamlss.dist" libaries?
There some functions called WEI, WEI2, and WEI3
Cheers,
Fer
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Dear R-users
I have some datasets, all left-censoring, and I would like to fit
distributions to (weibull,exponential, etc..). I read one solution using the
function survreg in the survival package. i.e
survreg(Surv(...)~1, dist="weibull") but it returns only the scale
parameter.
Does anyone know h
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